A 145-g baseball is dropped from a tree 13.0 m above the ground. (a) With what speed would it hit the ground if air resistance can be ignored? (b) If it actually hits the ground with a speed of 8.00 m/s, what is the average force of air resistance on it?

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A 145-g baseball is dropped from a tree 13.0 m above the ground. (a) With what speed would it hit the ground if air resistance can be ignored? (b) If it actually hits the ground with a speed of 8.00 m/s, what is the average force of air resistance on it?

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