Work, Energy and Power questions
712 published questions with worked solutions.
- The minimum velocity at the lowest point, so that the string just slacks at the highest point in a vertical circle of radius l, is
- A body of mass m hangs at one end of a string of length l, the other end of which is fixed. It is given a horizontal velocity so...
- A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break
- In a circus, a stuntman rides a motorbike in a circular track of radius R in the vertical plane. The minimum speed at the highest...
- A hollow sphere has radius 6.4 m. The minimum velocity required by a motorcyclist at the bottom to complete the circle will be
- A stone tied with a string is rotated in a vertical circle. The minimum speed with which the string has to be rotated
- A particle originally at rest at the highest point of a smooth vertical circle is slightly displaced. It will leave the circle at...
- A 1 kg stone at the end of a 1 m long string is whirled in a vertical circle at a constant speed of 4 m/sec. The tension in the...
- A particle is tied to a 20 cm long string. It performs circular motion in a vertical plane. What is the angular velocity of the...
- The string of a pendulum of length l is displaced through 90^ from the vertical and released. Then the minimum strength of the...
- A particle is kept at rest at the top of a sphere of diameter 42 m. When disturbed slightly, it slides down. At what height h...
- A body crosses the topmost point of a vertical circle with critical speed. Its centripetal acceleration, when the string is...
- The maximum and minimum tension in the string whirling in a circle of radius 2.5 m with constant speed are in the ratio 5:3. The...
- A bucket tied at the end of a 1.6 m long string is whirled in a vertical circle with constant speed. What should be the minimum...
- A sphere is suspended by a thread of length l. What minimum horizontal velocity has to be imparted to the ball for it to reach...
- A fighter plane is moving in a vertical circle of radius r. Its minimum velocity at the highest point of the circle will be
- A bucket full of water is revolved in a vertical circle of radius 2 m. What should be the maximum time-period of revolution so...
- In a vertical circle of radius r, at what point in its path does a particle have tension equal to zero if it is just able to...
- A body of mass 0.4 kg is whirled in a vertical circle making 2 rev/sec. If the radius of the circle is 2 m, then the tension in...
- A stone of mass 1 kg tied to a light inextensible string of length L= 10 3 m is whirled in a circular path of radius L in a...
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