Question

Lance is a 60-kg runner who, on a good day, runs at a speed of 5 m/s. What is his kinetic energy when he runs at this speed?

Answer 1

Answer: 750 Joules.

Explanation:

Use the equation: K = 1/2 x m x s^2

1/2 x 60 = 30.

30 x (5 x 5) 25 = 750

Lance's kinetic energy when he runs at this speed is 750 Joules.