Laws of Motion questions
1031 published questions with worked solutions.
- The centripetal acceleration of a particle of mass m moving with velocity v in a circular orbit of radius r is **[Kerala CEE...
- A particle moves in a circle of radius R with speed v_1, experiencing centripetal acceleration a_1. If its speed is changed to...
- A pendulum bob hangs from the roof of a car accelerating horizontally with acceleration a. If the string makes an angle with the...
- A particle moves in a circle of radius 30 cm. Its linear speed is given by v=2t (t in s, v in m/s). Find its radial and...
- A particle of mass 100 g tied to a string is rotated along a circle of radius 0.5 m. The breaking tension of the string is 10 N....
- A particle of mass m moves with constant speed along a circular path of radius r under the action of a force F. Its speed is
- A particle moves along a circle of radius ( 20 ) m with constant tangential acceleration. If the velocity of the particle is 80...
- A ball of mass 0.25 kg attached to the end of a string of length 1.96 m is moving in a horizontal circle. The string will break...
- A boy whirls a stone in a horizontal circle of radius 1.5 m and at height 2.0 m above level ground. The string breaks and the...
- The angular speed of a car's wheel increases from 600 rpm to 1200 rpm in 10 s. What is the angular acceleration of the wheel?
- The speed of revolution of a particle going around a circle is doubled and its angular speed is halved. What happens to the...
- A wheel making 20 revolutions per second is in a horizontal circle with a uniform angular velocity. Let T be the tension in a...
- A particle moves in a circle with uniform speed. When it goes from a point A to the diametrically opposite point B, the momentum...
- The kinetic energy K of a particle moving along a circle of radius R depends on the distance covered s as K = as^2. The force...
- A sphere of mass 0.2 kg is attached to an inextensible string of length 0.5 m whose upper end is fixed to the ceiling. The sphere...
- A particle is moving along a circular path with a uniform speed. How does its angular velocity change when it completes half of...
- An electric fan has blades of length 30 cm measured from the axis of rotation. If the fan rotates at 120 rpm, the acceleration of...
- Two wires AC and BC, both anchored above the plane of revolution, are tied at C to a small sphere of mass 5 kg, which revolves at...
- An object of mass 60 kg is being weighed on a spring balance while moving around a curve of radius 100 m at a speed of 7 m/s. The...
- The wheel of a toy car rotates about an axis. It slows down from 400 rps to 200 rps in 2 s. Its angular retardation, in rad s^ -2...
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