Question

When a ball is thrown straight up, is there any point at which the ball has zero acceleration?

Answer 1

No, the acceleration is constant at every point of it's trajectory

Answer 2

no

Answer 3

always -9.8
velocity can be zero at the top

Answer 4

the ball accelerates downwards with gravity over the entire trajectory

Answer 5

Ya krypton is correct. Acceleration is always -9.8 for moving against gravity

Answer 6

No never becaz acceleration is always -9.8 m/s^2...but velocity varies...