Question

A football player throws a football 30 meters in 2.5 seconds. What is the speed of the ball?A 75 m/sB 12 m/sC 30 m/sD 2.5 m/s

Answer 1

Given,

The distance covered by the football, d=30 m

The time it takes for the football to cover the given distance, t=2.5 s

The speed of an object is given by the ratio of the distance covered by the object to the time it takes for the object to cover that distance.

Thus the speed of the ball is given by,

`s=(d)/(t)`

On substituting the known values in the above equation,

`\begin{gathered} s=(30)/(2.5) \\ =12\text{ m/s} \end{gathered}`

Thus the speed of the ball is 12 m/s

Therefore the correct answer is option B.