Statement I is true, statement I is true; statement I is not a correct explanation fro statement I

Statement I is true, statement II is true; statement II is a correct explanation for statement I

Statement I is the true, statement II is false

Statement I is false, statement II is true

JEE Questions for Physics Motion In A Straight Line Quiz 15

A particle is moving with constant acceleration from A to B in a straight line AB. If u and v are the velocities at A and B respectively, then its velocity at the mid-point C will be

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0%
2)
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0%

An aircraft is flying at a height of 3400 m above the ground. If the angle subtended at a ground observation point by the aircraft positions 10 s apart is 30^o, then the speed of the aircraft is

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19.63 ms–1
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1963 ms–1
0%
108 ms–1
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196.3 ms–1

A particle starts from rest. Its acceleration (a) versus time (t) is as shown in the figure. The maximum speed of the particle will be
Physics-Motion in a Straight Line-82051.png

Physics-Motion in a Straight Line-82051.png

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110 m/s
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55 m/s
0%
550 m/s
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660 m/s

A stone dropped from a building of height h and it reaches after t sec on earth. Form the same building if two stone are thrown (one upwards and other downwards) with the same velocity u and they reach the earth surface t₁ and t₂ sec respectively, then

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0%
2)
0%
0%

Physics-Motion in a Straight Line-82063.png

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2)
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0%

A particle located at x = 0 at time t = 0 starts moving along the positive x-direction with a velocity \'v\' that varies as v = α√x. The displacement of the particle varies with time as

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t
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t1/2
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t3
0%
t2

Two bodies are thrown simultaneously from a tower with same initial velocity v₀ one vertically upwards, the other vertically downwards. The distance between the two bodies after time is

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0%
2)
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0%

A ball is thrown vertically upwards. Which of the following graph/graphs represent velocity-time graph of the ball during its flight (sir resistance is neglected)?

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2)
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0%

Figure given shows the distance-time graph of the motion of a car. It follows from the graph that the car is
Physics-Motion in a Straight Line-82074.png

Physics-Motion in a Straight Line-82074.png

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At rest
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In uniform motion
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In non-uniform acceleration
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Uniformly accelerated

A body is a rest at x = 0. At t = 0, it starts moving in the positive x-direction with a constant acceleration. At the same instant another body passes through x = 0 moving in the positive x-direction with a constant speed. The position of the first body is given by x₁(t) after time \'t\' and that of the second body by x₂(t) after the same time interval. Which of the following graphs correctly describes (x₁ – x₂) as a function of time\'t\'?

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0%
2)
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0%

he velocity-time graph of a body moving in a straight line is shown in the figure. The displacement and distance travelled by the body in 6sec are respectively
Physics-Motion in a Straight Line-82081.png

Physics-Motion in a Straight Line-82081.png

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8 m, 16 m
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16 m, 8 m
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16 m, 16 m
0%
8 m, 6 m

Figure (i) and (ii) below show the displacement-time graph of two particles moving along the x-axis. We can say that
Physics-Motion in a Straight Line-82083.png

Physics-Motion in a Straight Line-82083.png

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Both the particles are having a uniformly accelerated motion
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Both the particles are having a uniformly retaded morion
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Particle (i) is having a uniformly retarded motion
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Particle (i) is having a uniformly accelerated motion while particle (ii) is having a uniformly retarded motion

For the velocity-time graph shown in figure below the distance covered by the body in last two sec of its motion is what fraction of the total distance covered by it in all the seven second
Physics-Motion in a Straight Line-82084.png

Physics-Motion in a Straight Line-82084.png

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1/2
0%
1/4
0%
1/3
0%
2/3

Which of the following graph represents uniform motion?

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0%
2)
0%
0%

The graph of displacement v/s time is
Its corresponding velocity-time graph will be
Physics-Motion in a Straight Line-82094.png

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0%
2)
0%
0%

Which graph represents the uniform acceleration?

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0%
2)
0%
0%

The given graph shows the variation of velocity with displacement. Which one of the graph given below correctly represents the variation of acceleration with displacement?
Physics-Motion in a Straight Line-82103.png

Physics-Motion in a Straight Line-82103.png

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0%
2)
0%
0%

A body starts from rest and moves with uniform acceleration. Which of the following graphs represent its motion?

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0%
2)
0%
0%

An object is dropped from rest. Its v-t graph is

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0%
2)
0%
0%

v-t graph fr a particle is as shown. The distance travelled in the first 4s is
Physics-Motion in a Straight Line-82119.png

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12 m
0%
16 m
0%
20 m
0%
24 m

A boy begins to walk eastward along a street in front of this house and the graph of his position from home is shown in the following figure. His average speed for the whole time interval is equal to
Physics-Motion in a Straight Line-82121.png

Physics-Motion in a Straight Line-82121.png

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8 m/min
0%
6 m/min
0%
8/3 m/min
0%
2 m/min

Look at graphs (a) to (d) carefully and indicate which of these possibly represents one dimensional motion of a particle

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0%
2)
0%
0%

A body is travelling in a straight line with a uniformly increasing speed. Which of the plot represents the change in distance (s) travelled with time (t)

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0%
2)
0%
0%

A particle starts from rest at t = 0 and undergoes an acceleration a in ms^–2 with time t in sec which is as shown.
Which one of the following plot represents velocity V in ms^–1 versus time t in sec?
Physics-Motion in a Straight Line-82132.png

Physics-Motion in a Straight Line-82132.png

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0%
2)
0%
0%

The velocity-time and acceleration-time graphs of a particle are given as shown in figure
Its position-time graph may be given as
Physics-Motion in a Straight Line-82138.png

Physics-Motion in a Straight Line-82138.png

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0%
2)
0%
0%

A particle of mass m moves on the x-axis as follows: it starts from rest at t = 0 from the point x = 0 and comes to rest at t = 1 at the point x = 1. No other information is available about its motion at intermediate time (0 < t < 1). If α denotes the instantaneous acceleration of the particle, then)
a. α cannot remain positive for all t in the interval 0 ≤ t ≤ 1
b. |α| cannot exceed 2 at any point in its path
c. |α| must be ≥ 4 at some point or points in its path
d. α must change sign during the motion but no other assertion can be made with the information given.

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a, c and d
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d only
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c only
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None of these

Physics-Motion in a Straight Line-82144.png

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a, b and d
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a only
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b only
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d only

Physics-Motion in a Straight Line-82146.png

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Statement I is true, statement II is true; statement II is a correct explanation for statement I
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Statement I is true, statement I is true; statement I is not a correct explanation fro statement I
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Statement I is the true, statement II is false
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Statement I is false, statement II is true

Assertion: A body can have acceleration even if its velocity is zero at a given instant of time.
Reason: A body is momentarily at rest when it reverses its direction of motion.

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If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion
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If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion
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If Assertion is true but Reason is false
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If the Assertion and Reason both are false
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If Assertion is false but Reason is true

Physics-Motion in a Straight Line-82214.png

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225.5
0%
175.5
0%
190.5
0%
310.5

JEE Questions for Physics Motion In A Straight Line Quiz 15 - MCQExams.com

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JEE Questions for Physics Motion In A Straight Line Quiz 15 - MCQExams.com

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