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1. Physics Problem Solving a.) More people end up in U.S. emergency rooms because of fall-related...

1. Physics Problem Solving

a.) More people end up in U.S. emergency rooms because of fall-related injuries than from any other cause. At what speed ? vwould someone hit the ground who accidentally steps off the top rung of a 14.00 ft tall stepladder? (That step is usually embossed with the phrase "Warning! Do not stand on this step.") Ignore the effects of air resistance. Let the +y direction point vertically upward and the origin be on the ground.

b.) While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 7.63 m/s. The stone subsequently falls to the ground, which is 12.7 m below the point where the stone leaves his hand.

At what speed does the stone impact the ground? Ignore air resistance and use g=9.81 m/s2 for the acceleration due to gravity.

How much time is the stone in the air?

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Answer #1

SaP a) H No w usaooation as b) First af all 1 ball will pesto ho hi whe /t is throwm by man, Se, Now ball hit the 9 round r height (h th2) h2- 12.m Now Sg p@ 2 9 H tv/2Xq.8 χ 15.67

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