Physics, asked by kchvsrAnu4782, 1 year ago

If the kinematic energy of a body increases by 100/ . Then what is the change in momentum of the body

Answers

Answered by crazy789wadhwani777
0
The momentum will increase 1.414 times or 41.4 %

We have,
Kinetic energy,

K = 1/2 mv^2

Where 'm' is the mass of the object and 'v' is the velocity of linear motion.

Similarly,
Linear momentum,

P = mv

On solving the 2 equations, we get the direct relation between P and K.

K = P^2/2m

Or k is propotional to P^2

It is said that linear Kinetic energy raised by 100%, so new Kinetic energy,
K*= 2 K

To find the new momentum P*,

K∗/K=(P∗/P)2

2K/K=(P∗/P)2

2=(P∗/P)2

P∗=√2P

The momentum increases √2 times.
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