JEE Questions for Physics Motion In A Straight Line Quiz 5

The given graph shows the variation of velocity with displacement. Which one of the graph given below correctly represents the vibration of acceleration with displacement ?

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2)
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A body projected vertically upwards crosses a point twice in its journey at a height h just after t₁ and t₂ second. Maximum height reached by the body is

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0%
2)
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0%

A man goes 10 m towards North, then 20 m towardseast then displacement is

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22.5 m
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25 m
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25.5 m
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30 m

An aeroplane files 400 m north and 300 m south and then files 1200 m upwards then net displacement is

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1200 m
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1300 m
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1400 m
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1500 m

The three initial and final position of a man on the x-axis are given as
(i) (–8m, 7m)
(ii) (7m, –3m) and
(iii) (–7m, 3m)
Which pair gives the negative displacement

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(i)
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(ii)
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(iii)
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(i) and (iii)

A graph is drawn between velocity and time for the motion of a particle. The area under the curve between the time intervals t₁ and t₂ gives

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Momentum of the particle
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Displacement of the particle
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Acceleration of the particle
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Change in velocity of the particle
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Force on the particle

A cat moves from X to Y with a uniform speed v_u and returns to X with a uniform speed v _d. The average speed for this round trip is

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2)
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0%

One car moving on a straight road covers one third of the distance with 20 km/hr and the rest with 60 km/hr.The average speed is

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40 km/hr
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80 km/hr
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36 km/hr

A car travels half the distance with constant velocity of 40 kmph and the remaining half with a constant velocity of 60 kmph. The average velocity of the car in kmph is

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40
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45
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48
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50

A train has a speed of 60 km/hr. for the first one hour and 40 km/hr. for the next half hour. Its average speedin km/hr. is

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50
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53.33
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48
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70

Which of the following is a one dimensional motion

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Landing of a aircraft
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Earth revolving around the sun
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Motion of wheels of moving train
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Train running on a straight track

A 150 m long train is moving with a uniform velocity of 45 km/hr. The time taken by the train to cross a bridge of length 850 m is

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56 sec
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68 sec
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80 sec
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92 sec

A particle is constrained to move on a straight line path if returns to the starting point after 10 sec. The total distance covered by the particle during this time is 30 m. Which of the following statements about the motion of the particle is false

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Displacement of the particle is zero
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Average speed of the particle is 3 m/s
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Displacement of the particle is 30 m
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Both (a) and (b)

A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km/hr. Finding the market closed, the instantly turns and walks back home with a speed of 7.5 km/hr. The average speed of the man over the interval of time 0 to 40 min. is equal to

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2)
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0%

If a car covers 2/5th of the total distance with v₁ speed and 3/5th distance with v₂ then average speed is

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2)
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0%

Two boys are standing at the ends A and B of a ground where AB = a. The boy at B starts running in a direction perpendicular to AB with velocity v₁. The boy at A starts running simultaneously with velocity v and catches the other boy in a time t, where t is

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0%
2)
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0%

A particle covers half of its total distance with speed v₁ and the rest half distance with speed v₂. Its average-speed during the complete journey is

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0%
2)
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0%

Physics-Motion in a Straight Line-81568.png

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10 units
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7√2 units
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7 units
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8.5 units

A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S₁. and that covered in the first 20 seconds isS₂, then

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S2 = 2S1
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S2 = 3S1
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S2 = 4S1
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S2 = S1

A particle moves along a straight line OX. At a time t (in seconds) the distance x (in metres) of the particle from O is given by x = 40 + 12t –t³
How long would be particle travel before coming to rest

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24 m
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40 m
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56 m
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16 m

A particle moves in a straight line with a constant acceleration. It changes its velocity from 10 ms^–1 to 20 ms^–1 . While passing through a distance 135 m in t second. The value of t is

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12 sec
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9 sec
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10 sec
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1.8 sec

The distance travelled by a particle starting from restand moving with an acceleration 4/3 ms^–2, in the thirdsecond is

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2)
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6 m
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4 m

A body moves for a total of nine second starting from rest with uniform acceleration and then with uniform retardation, which is twice the value of acceleration and then stops. The duration of uniform acceleration

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3 s
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4.5 s
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5 s
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6 s

A car start from rest and accelerates uniformly to a speed of 180 km h^–1 in 10 seconds. The distance covered by the car in this time interval is

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500 m
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250 m
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100 m
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200 m
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150 m

A body starting from rest, accelerates at a constant rate a m/s² for some time after which it decelerates at a constant rate b m/s² to come to rest finally. If the total time elapsed is t sec, the maximum velocity attained bythe body is given by

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2)
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The initial velocity of a particle is u (at t =and the acceleration f is given by at Which of the followingrelation is valid

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2)
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0%

What determines the nature of the path followed by the particle

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Speed
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Velocity
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Acceleration
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Both (b) and (c)

The initial velocity of a body moving along a straight line is 7 m/s. It has a uniform acceleration of 4 m/s². The distance covered by the body in the 5th second of its motion is

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25 m
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35 m
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50 m
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85 m

A body starting from rest moves with uniform acceleration. The distance covered by the body in time t is proportional to

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2)
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0%

A car, starting from rest, accelerates at the rate f through a distance S, then continues at constant speedfor time t and then decelerates at the rate f /2to come torest. If the total distance traversed is 15 S, then

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2)
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0%

JEE Questions for Physics Motion In A Straight Line Quiz 5 - MCQExams.com

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JEE Questions for Physics Motion In A Straight Line Quiz 5 - MCQExams.com

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Practice Physics Quiz Questions and Answers

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