Calculate the kinetic energy in joules of a 150 lb jogger (68.1 kg)traveling at 12.0 mile/hr (5.36 m/s). A)1.96 × 10³ J B)365 J C)978 J D)183 J E)68.1 J

Question

Quizplus · Accepted Answer

First, convert the weight from pounds to kilograms:
150 lb = 68.1 kg

Then, use the formula for kinetic energy:
KE = 0.5 * mass * velocity^2

KE = 0.5 * 68.1 kg * (5.36 m/s)^2
KE = 978 J

Therefore, the correct answer is C, 978 J.

Calculate the Kinetic Energy in Joules of a 150 Lb