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Lakhmir Singh Solutions Class 9 Physics Solutions for Exercise in Chapter 4 - Work And Energy

Question 44 Exercise

a) On what factors does the gravitational potential energy of a body depend?

b) Give one example each of a body possesses both, i) kinetic energy ii) potential energy

Answer:

a) Following are the factors on which the gravitational the potential energy of a body depends on:

i) mass of the body

ii) height at which the body is lifted

iii) acceleration due to gravity

b) i) Energy stored in a car while its moving is an example of kinetic energy

ii) Energy stored in a stretched rubber is an example of potential energy

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