Question

An 50kg car travels at 2m/s. What is the car's Kinetic energy?
100J
200J
50J

Answer 1

The answer is 100J.

Step-by-step explanation:

In classical mechanics, kinetic energy (KE) is equal to half of an object's mass (1/2*m) multiplied by the velocity squared. In this question, the mass is equals to 50kg and the velocity is 2m/s

Now,

25kg×4m/s^2 = 100kgm/s^2 or 100J