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Answer to Question #76917 in Physics for waffles
Question #76917
A ball of mass 240g is moving through the air at 20m/s with a gravitational potential energy of 70J. With what speed will the ball hit the ground?
Expert's answer
(mv^2)/2+E=(mV^2)/2
V=√(v^2+2E/m)=√(〖20〗^2+(2(70))/0.24)=31 m/s.
V=√(v^2+2E/m)=√(〖20〗^2+(2(70))/0.24)=31 m/s.
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