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  3. 4. a boy stands on a diving board and tosses a sto

4. A boy stands on a diving board and tosses a stone into a swimming pool....

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Physics

4. A boy stands on a diving board and tosses a stone into aswimming pool. The stone is thrown from a height of 2.8 m above thewater surface with a velocity of 5.6 m/s at 72 degrees above thehorizontal.

a) First determine the time it is airborne. (I got 1.48 sec)

b) Now find its impact velocity. (Vx=2 m/s and Vy=9.17 m/s)

As the stone impacts the water, it instantly slows down to halfits previous velocity, and maintains that velocity (both speed anddirection) as it sinks to the bottom of the pool, which is 4.0 mdeep.

c) Find the time it takes to reach the bottom. (1.93 sec)

Bonus +3 What is the total horizontal displacement of the stoneover its entire trip? I dont know how to do this one

Answer & Explanation Solved by verified expert
4.1 Ratings (592 Votes)
Answer First you can simplify the whole problem by removing the horizontal component A stone is thrown straight up at a velocity of 56 sin72 533 meters sec    See Answer
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