A ball is dropped from a height of 20.0m. It falls for 2.00 seconds. It's velocity is 24.6m/s when it hits the ground. Find the acceleration of the ball when it hits the floor

Question

stormfire1 · Answer

I believe this is a constant acceleration problem but there seems to be a typo somewhere in it.

If it reached 24.6 m/s in 2 seconds then the acceleration will be 12.3 m/s^2.  However, with that acceleration the distance traveled would be 24.6m...not 20m.

If it traveled 20m in 2 seconds the acceleration would be 10m/s^2...which is pretty close to what you would expect it to be (on Earth anyway)...but the final velocity would be 20m/s.