Question

If a football is thrown from rest with an acceleration of 8.5 m/s2, and had an final

relocity of 25m/s, how long was the football accelerating?

Answer 1

t = 2.94 seconds

Step-by-step explanation:

Given that,

The initial velocity of the football, u = 0

The final velocity of the football, u = 25 m/s

Acceleration, a = 8.5 m/s²

We need to find the time for which the football is accelerating. Let the time is t. We know that,

`a=(v-u)/(t)\\\\t=(v-u)/(a)\\\\t=(25-0)/(8.5)\\\\t=2.94\ s`

So, the football is accelerating for 2.94 seconds.