An object has mass of 50 kg is raised to a height 9 m . Calculate potential energy
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Potential energy can be calculated as: mgh = 50 × 9.8 ×4 = 1960 N
Total Mechanical energy = 1960 N
Kinetic energy when it is at fallen down 2 m = ?
Potential energy when it is at fallen down 2 m = mg(4-2) = 50× 9.8 ×2 = 980 N
therefore, Kinetic energy when it is at fallen down 2 m = Total energy - potential energt at 2 m = 1960-980=980 N
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