# NCERT Exemplar Solutions Class 9 Science Solutions for Work and Energy - Exercise in Chapter 11 - Work and Energy

Question 9 Work and Energy - Exercise

A body is falling from a height h. After it has fallen from a height h2, it will possess

(a) only potential energy

(b) only kinetic energy

(c) half potential and half kinetic energy

(d) more kinetic and less potential energy

The answer is (c) half potential and half kinetic energy

Explanation:

When the body is at height h, its potential will be a hundred percent and kinetic energy will be zero. In the same way, when the body reaches the ground its potential energy will be zero and kinetic energy will be maximum. At height h/2 both potential energy and kinetic energy of the body will behalf.

Video transcript
"hello everyone welcome to leader learning i am gurpreet your science tutor today's question is a body is falling from a height h after it has fallen from a height h2 it will possess a only potential energy b only kinetic energy and c half potential and half kinetic energy and d more kinetic and less potential energy so four options have been given to you and out of the four options you have to tell the correct option so let us start our answer when the body is at height h its potential energy will be 100 and kinetic energy here will be zero but in case when the body is reaching the ground its potential energy will be zero and kinetic energy will be maximum okay so at the height h2 from the question both potential energy and kinetic energy will be half clear hence the correct option for the question becomes that is option c half the potential and half will be the kinetic energy for more such videos please subscribe leader learning and for any doubts drop a comment thank you"
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