Question

speed of a body is doubled. Its kinetic enrgy is now......times the original kinetic energy

Answer 1

Hey friend,
We know the formula of Kinetic energy = 1/2 mv^2

So,
If the speed of the body is doubled, It's kinetic energy will now FOUR TIMES from the original kinetic energy.

Hope this helps!!!

@Mahak24

Thanks...
☺☺

Answer 2

Heya.......!!!!

Kinetic energy = 1/2mv^2

If you doubled the velocity Then ,

Let the new kinetic energy be K1 = 1/2m(2v)^2

=>> 1/2×m×4v^2

Kinetic energy will be 4 times the Original ones.



Hope it helps u ☺