February 20, 2017

Homework Help: physics

Posted by Kate on Tuesday, February 1, 2011 at 7:53pm.

A tennis ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s. What is the magnitude of the acceleration due to gravity on the surface of this planet.

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