A boy weighing 40kg makes a high jump of.1.5 m
1.what is his kinetic energy at the highest point.
2.what is the potential energy at the highest point.
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1. kinetic energy = 1/2×mv×v
= 1/2×40×1.5×1.5
= 20×2.25
= 45
= 1/2×40×1.5×1.5
= 20×2.25
= 45
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