Afootball punter accelerates a football from rest to a speed of 10m/sec during the time in which his toe is in contact with the ball (about 0.2 sec). if the football has a mass of 0.5 kg, what average force does the punter exert on the ball?

The average force that the punter exert on the ball is 25 N.

Explanation:

The force acting on the ball is equal to its mass times its acceleration: F=ma

You can find the acceleration using the velocity and the time given by the problem, i is for initial and f is for final:  

From the problem, you now that v_i=0 because the ball was at rest, and t_f-t_i is equal to 0.2 s.  

Now that you know the acceleration, you can replace the value in the formula for the force:  

F=25 N

The force is 25 Newtons, which is the unit to measure the force.

To find how much each bicycle weighed, all we have to do is divide the total amount of weight (1,056) by how many bicycles that were weighed (24)

1,056 ÷ 24 = 44

Therefore, each bicycle weighed 44 pounds

Hope this helps you

-AaronWiseIsBae