Question
A ball rolls down a hill I covering distance : of 35 metres. It takes the ball 17.5 seconds to reach the bottom of the hill. At what speed was the ball travelling?Use the formula speed=disiance / time Enter a number m/s
Answer
4.1
(255 Votes)
Mair
Master · Tutor for 5 years
Answer
2 m/s.
Explanation
This problem involves using the formula for speed, which is distance divided by time. The distance that the ball rolls down is 35 meters and the time it takes is 17.5 seconds.Now we can calculate: The speed of the ball rolling down hill = Distance covered / Time taken = 35 m / 17.5 s = 2 m/s