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प्रश्न
On what factors does the gravitational potential energy of a body depend?
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उत्तर
Gravitational potential energy of a body depends on its position above the ground.
Example - A book kept on a table possesses gravitational potential energy because of its position above the ground.
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संबंधित प्रश्न
State two factors on which the potential energy of a body at a certain height above the ground depends.
A bucket full of water is on the first floor of your house and another identical bucket with the same quantity of water is kept on the second floor. Which of the two has greater potential energy?
The gravitational potential energy stored in a box of weight 150 kgf is 1.5 × 104 J. Find the height of the box. Take 1 kgf = 10 N.
A spring is kept compressed by a small trolley of mass 0.5 kg lying on a smooth horizontal surface as shown in the adjacent fig. When the trolley is released, it is found to move at a speed v = 2 m s-1. What potential energy did the spring possess when compressed?
A body falls freely under gravity from rest. Name the kind of energy it will possess at the point from where it falls.
What happens to the potential energy of a body when its height is doubled?
A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate the amount of work done by him. How much potential energy does he gain? (g = 9.8 m/s2)
A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s? (Assume g = 10 m/s2).
A man is instructed to carry a package from the base camp at B to summit A of a hill at a height of 1200 metres. The man weighs 800 N and the package weighs 200 N. If g = 10 m/s2,
- how much work does man do against gravity?
- what is the potential energy of the package at A if its is assumed to be zero at B?
If we increase the velocity of a car moving on a flat surface to four times its original speed, its potential energy ______.
