Question

A truck eeighing 5000kg f and a cart weighing 500kg f are moving with the same speed . Compare there kinetic energies

Answer 1

K.E. = 1/2 m v2

KE truck = 1/2 * 5000 * v2

KE cart = 1/2 * 500 * v2

both have same velocity hence

(KEcart *2)/500 = (KEtruck*2) /5000

10 * KEcart = KEtruck

i.e.

Kinetic energy of truck is 10 times more than cart

which means truck needs more energy than cart to pull itself to the same speed of the cart due to it's weight.

I hope this helps

Answer 2

Heyaa mate , here is your answer

Hope it helps......