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An object of mass 40 kg is raised to a height of 5 m above the ground. What is its potential energy? If the object is allowed to fall, find its kinetic

energy when it is half-way down

Sciences - Main Course Book

Chapter 11. Work and Energy


Taking g=10m/s^2

Potential energy=mgh=40*10*5=2000 kg/m^3

Kinetic energ
y=1/2*m*v^2=2000 kg/m^3

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