QUESTION 4 Your friend tosses a ball straight up with a velocity of 10m/s. At the top of the toss, the magnitude of the ball's velocity is vm/s and the magnitude of its acceleration is
m/s?

If there was no gravity then their would be no downword force on the football to have it return the the grownd, and if there was no friction (mainly air friction) then there would be no opposing force the stop the ball from moving through the air allowing the ball to travle ∞.

Answermuscle strength;