Question

when a body falls from height its Potential energy changes​

Answer 1

Answer:

No. The process does not violate the law of conservation of energy. This is because when the body falls from a height, then its potential energy changes into kinetic energy progressively. A decrease in the potential energy is equal to an increase in the kinetic energy of the body.

PLZ MARK AS BRIANLIEST AND THX FOR THE SUPERB QUESTION

Answer 2

Answer:

Let a body of mass  

′

m  

′

 placed at a height  

′

h  

′

 above the ground, start falling down from rest.`

When the body falls from a height h to h/2, the potential energy is given as  

2

mgh

​  

.

The body covers the distance h/2 with a velocity v. We make use of the third equation of motion to obtain velocity of the body.

v  

2

−u  

2

=2aS

Here, u=0,a=g and S=x

v  

2

−0=  

2

2gh

​  

,thatisv  

2

=gh

Kinetic energy =  

2

1

​  

mv  

2

 

That is, K.E=  

2

mgh

​  

 

Hence, at height h/2 the energy possessed is half potential energy and half the kinetic energy.