Marcus wants to test the effect of gravity on objects with different masses. He drops two footballs from a first-floor window, a second-floor window, and a third-floor window In each case, he times how long it takes the footballs to reach the ground. What is wrong with his experment's design?
O The windows are not high enough to show significant differences in drop times
It does not include objects with different masses
O It does not include objects with different shapes.
The drops are not repeated
(1 point)
1 answer