Question

How kinetic energy increased 4 times when the speed of an object doubles?

Answer 1

heya mate!!!

______________________

kinetic energy is 4times when speed is doubled as

according to formula 1/2mv^2

v'=2v

so 1/2m(2v)^2

so,,,

1/2m(4v^2)

*4 (1/2mv^2)

hence proved!!

Answer 2

$\huge\mathfrak\red{Bonjour\:mate}$

$\huge\boxed{Answer}$____✌✌

v=2V'

=1/2×m×(2v)²

=4