Question

Students in lab measure the speed of a steel ball launched horizontally from a table top to be 4.2 m/s. If the table top is 1.2 m above the floor, where should they place a 20 cm tall tin coffee can to catch the ball when it lands?
Calculate how long it takes to fall 1.0 meters.
(from 1.2 m to 20 cm above the floor)

Multiply that time by 4.2 m/s. That will be the horizontal location of the ball at that time.

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