Posted by **Danny** on Saturday, April 27, 2013 at 3:45pm.

A Body with a mass of 150kg is located at a height of 45 m. If allowed to fell freely to the ground. What will be its velocity on impact?

KE= 1/2*m*v^2

PE= m*g*h

1/2*m*v^2= m*g*h

1/2*150kg*45m*v^2= 150kg*9.81*45m

3375* v^2= 66217.5

3375*v^2/3375= 66217.5/3375

v^2= 19.62m/s

Is this done correctly?

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