Work, Energy and Power questions
712 published questions with worked solutions.
- A particle of mass m is performing UCM along a circle of radius r. The relation between centripetal acceleration a and kinetic...
- If the radius of the circular path and frequency of revolution of a particle of mass 'm' are doubled then the change in its...
- A body is just revolved in a vertical circle of radius 'R'. When the body is at highest point, the string breaks. The horizontal...
- A body is just revolved in a vertical circle of radius 'R'. When the body is at highest point, the string breaks. The horizontal...
- A stone of mass 'm' is tied to a string of length 'L' and moved in a vertical circle at the rate of 'n' revolutions per minute....
- An uniform rod of length 2 m is suspended from one end such that it is free to rotate about the axis perpendicular to length...
- A body having moment of inertia of 3 kg-m^2 rotating with an angular velocity of 2 rad/s has the same kinetic energy as a mass of...
- For increasing the angular velocity of a object by 10%, the kinetic energy has to be increased by
- A can filled with water is revolved in a vertical circle of radius 4 m and the water does not fall down. The time period for a...
- A body is just being revolved in a vertical circle of radius R with a uniform speed. The string breaks when the body is at the...
- A body of mass 1 kg is rotating in a vertical circle of radius 1 m. What will be the difference in kinetic energy at the top and...
- In a loop, a body starts at a height h=2R. The minimum speed with which the body must be pushed down initially in order that it...
- A bucket tied at the end of 1.6 m long string is whirled in a vertical circle with a constant speed. The minimum speed at which...
- A mass m is attached to the end of a rod of length l. The mass goes along a vertical circular path with the other end, hinged at...
- A stone is tied to a string of length l and is whirled in a vertical circle with the other end of the string as the centre. At a...
- 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 ball suspended by a thread swings in a vertical plane, so that its acceleration in the extreme position and lowest position are...
- You may have seen in a circus, a motorcyclist driving in vertical loop inside a 'death well' (a hollow spherical chamber with...
- The maximum and minimum tensions in the string whirling in a circle of radius 2.5 m are in the ratio 5 : 3, then its velocity is
- For a particle moving in vertical circle, the total energy at different positions along the path [MHTCET 2017]
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