Question

how is the kinetic energy of kart effected if mass is doubled.... please give me a mathematicaly proved answer​

Answer 1

Answer:

i don't understanding this

Answer 2

Answer:

The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed is called its kinetic energy.

K=

2

1

mv

2

When, v=2v,

K

′

=

2

1

m(2v)

2

K

′

=4×

2

1

mv

2

K

′

=4K

Hence, when velocity is doubled, kinetic energy becomes 4 times.