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Motion under gravity explained

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A 2-kg object is thrown upwards with an initial velocity of +20 m/s and travels in free-fall motion.
a. Diagram the forces acting upon the ball after it leaves the hand of the thrower. As in all free-body diagrams, label every force according to type.
b. Calculate the acceleration of the ball.
c. Calculate the speed of the ball after 3.0 seconds.
d. Calculate the distance traveled after 4.0 seconds.

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Solution Summary

The motion under gravity explained is determined. The acceleration of the ball is calculated.

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A 2-kg object is thrown upwards with an initial velocity of +20 m/s and travels in free-fall motion.

a. In the space at the right, diagram the forces acting upon the ball after it ...

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