Laws of Motion questions
1031 published questions with worked solutions.
- A stone of mass m is tied to a string of length l and rotated in a circle with constant speed v. If the string is released, the...
- A stone is tied to one end of a string and rotated in a horizontal circle with a uniform angular velocity. Let T be the tension...
- A long horizontal rod has a bead which can slide along its length, initially placed at a distance L from one end A of the rod....
- A coin placed on a gramophone record flies off when the rotational speed is 50 rpm. If two such coins are placed one over the...
- A man is supported on a frictionless horizontal surface. He is attached to a string and rotates about a fixed centre at angular...
- The angular velocity of a particle rotating in a circular orbit 100 times per minute is
- A chain of 125 links is 1.25 m long and has a mass of 2 kg, with the ends fastened together. It is set rotating at 50 rev/s. The...
- A particle performing uniform circular motion has
- A mass of 2 kg is whirled in a horizontal circle by means of a string at an initial speed of 5 revolutions per minute. Keeping...
- A body of mass 5 kg is moving in a circle of radius 1 m with an angular velocity of 2 rad/s. The centripetal force is
- A 500 kg car takes a round turn of radius 50 m with a velocity of 36 km/h. The centripetal force is
- A 2 kg stone tied at the end of a 1 m long string is whirled along a vertical circle at a constant speed of 4 m/s. The tension in...
- A stone of mass 1 kg is tied to one end of a string of length 1 m. It is whirled in a vertical circle at a constant speed of 4...
- A toy cart tied to the end of an unstretched string of natural length a, when revolved, moves in a horizontal circle of radius 2a...
- The condition of apparent weightlessness can be created momentarily when a plane flies over the top of a vertical circle. At a...
- When a simple pendulum is rotated in a vertical plane with constant angular velocity, the centripetal force is
- A car is moving on a circular level road of radius of curvature 300 m. If the coefficient of friction is 0.3 and g = 10 , ms ^ -2...
- A curved road of 50 m radius is banked at the correct angle for a given speed. If the speed is to be doubled keeping the same...
- A curved road of diameter 1.8 km is banked so that no friction is required at a speed of 30 m/s. What is the banking angle?
- A car rounds an unbanked curve of radius 92 m without skidding at a speed of 26 m/s. The smallest possible coefficient of static...
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