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A rock is thrown vertically upward with a speed of 11.0 m/s from the roof of...

A rock is thrown vertically upward with a speed of 11.0 m/s from the roof of a building that is 60.0 mabove the ground. Assume free fall.

1) In how many seconds after being thrown does the rock strike the ground?

2)What is the speed of the rock just before it strikes the ground?

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Answer #1

Sol stindthe mazimum highl ob the ock ag Noco we can compte time Time to go to max height is ound using hbte time to go fom nx heihtto gus 3.6 sec Total time = 3.6t loIQ = 4.11 Sec

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