An 8 kg object moving with an initial velocity of 4 m/s comes to rest due to friction after it travels a horizontal distance of 10 m. If the initial speed of the object is doubled, what distance will it travel before coming to rest? Use g = 10 m/s².

Question

Quizplus · Accepted Answer

When the initial speed is doubled, the kinetic energy becomes four times greater. Since the work done by friction (which is equal to the kinetic energy lost) is proportional to the distance traveled, the object will travel four times the original distance before coming to rest. Therefore, it will travel 40 m.

An 8 Kg Object Moving with an Initial Velocity of 4