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Work, Power And Energy
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05/11/2021 2:27 pm
Topic starter
A boy weighing 40 kg makes a high jump of 1.5m
(a) What is his kinetic energy at the highest point?
(b) What is his potential energy at the highest point?
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05/11/2021 2:28 pm
Mass of boy, m = 40 kg
Height, h = 1.5 m
Acceleration due to gravity, g = 10 m/s2
(a) At highest point velocity, v = 0
Therefore, KE = 0
(b) PE = mgh = 600J