A student wants to know if the fact is gravity is the same on all objects. She follows the steps.
1. Drop a five grand bar, a 10 g ball, And a 12 g ball from a height of 10 m
2. Record how long it takes for each object to hit the ground
3. ?
Which step should be next?
A. Drop the bars from a different height
B. Perform a second trail
C. Choose new balls
D. Measure the mass of the balls again