JEE Questions for Physics Motion In A Plane Quiz 16 - MCQExams.com

A car is travelling with linear velocity t’ on a circular road of radius r. If it is increasing its speed at the rate of \'a’ m/s2, then the resultant acceleration will be

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  • 2)
    Physics-Motion in a Plane-81178.png

  • Physics-Motion in a Plane-81179.png

  • Physics-Motion in a Plane-81180.png
A ball of mass 0.1 kg is suspended by a string. It is displaced through an angle of 60 and left. When the ball passes through the mean position, the tension in the string is
  • 19.6 N
  • 1.96 N
  • 9.8 N
  • Zero
An aeroplane moving horizontally at a speed of 200 m/s and at a height of 8.0 x 103 m is to drop a bomb on a target. At what horizontal distance from the target should be bomb be released
  • 7.234 km
  • 8.081 km
  • 8.714 km
  • 9.124 km
A particle is projected with a velocity u such that its range on the horizontal plane is twice the greatest height attained by it. The range of the projectile is (where g is acceleration due to gravity)

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  • 2)
    Physics-Motion in a Plane-81185.png

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A man standing on the roof of a house of height h throws one particle vertically downwards and another particle horizontally with the same velocity u. The ratio of their velocities when they reach the earth’s surface will be

  • Physics-Motion in a Plane-81189.png
  • 1 : 2
  • 1 : 1

  • Physics-Motion in a Plane-81190.png
A ball of mass m is thrown vertically upwards. Another ball of mass 2m is thrown at an angle H with the vertical. Both of them stay in air for same period of time. The heights attained by the two balls are in the ratio of
  • 2:1
  • 1: cosθ
  • 1 : 1
  • cosθ : 1
A body of mass m is projected at an angle 45o with the horizontal. If air resistance is negligible, then total change in momentum when it strikes the ground is
  • 2mv
  • √2mv
  • mv
  • mv/√2
A stone is projected from the ground with velocity 50 m/s at an angle of 30o. It crosses a wall after 3 sec. How far beyond the wall the stone will strike the ground (g = 10 m/sec2)
  • 90.2 m
  • 89.6 m
  • 86.6 m
  • 70.2 m
A cannon on a level plane is aimed at an angle θ above the horizontal and a shell is fired with a muzzle velocity v0, towards is vertical cliff a distance D away. Then, the height from the bottom at which the shell strikes the side walls of the cliff is

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  • 2)
    Physics-Motion in a Plane-81195.png

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0:0:1


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