Question

A 75-kilogram bicyclist coasts down a hill at a constant speed of 12 m/s. What is the kinetic energy of
the bicyclist?
a. 4.5 × 102
J b. 5.4 × 103
J c. 9.0 × 102 J d. 1.1 × 104
J

Answer 1

Answer:

5.4×$10^{3}$ J

Explanation:

Kinetic E=1/2mv^2

KE = 1/2 ×75 ×$12^{2}$= 5400J = 5.4×$10^{3}$ J