A student releases a ball from rest on an inclined plane and measures that it travels a distance of 0.8 m in a time of 4.0 s. The average speed of the ball is
A) 3.2 m/s.
B) 1.0 m/s.
C) 0.2 m/s.
D) 2.0 m/s.

Question

Quizplus · Accepted Answer

The average speed is calculated by dividing the total distance traveled by the total time taken. Here, the ball travels 0.8 m in 4.0 s, so the average speed is 0.8 m / 4.0 s = 0.2 m/s.

A Student Releases a Ball from Rest on an Inclined