A cannonball is fired straight up at a speed of 25 m/s. What is the maximum altitude that it will reach?

When the projectile is launched straight up, there isn't a horizontal ... The initial acceleration was 9.8 m/s2 pointing up, so the acceleration at any other point should be the same.

Explanation:

Hope it helped =)

explanation:

newton's third law, for every action there is an equal and opposite reaction.

the force on the thing and the distance the force moves the thing