Question

Which car has the most kinetic energy ??

A. a car mass 1400 kg with speed 4 m/s
B. a car mass 1300 kg with speed 3 m/s
C. a car mass 1500 kg with speed 5 m/s
D. a car mass 1200 kg with speed 2 m/s

Answer 1

Kinetic Energy is defined by 1/2 times the mass times the velocity squared.

KE = (1/2)mv2

Answer 2

it's C

because the faster an object moves the more kinetic energy it has.