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Seleh
A body of mass 20kg initially at rest is subjected to a force of 40N for 1second calculate the change in kinetic energy
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Answered by
oobleck
AAAaannndd the bot gets it wrong yet again!
KE = 1/2 mv^2
v = at
F = ma
KE = (1/2) × 20kg × (40N/20kg * 1s)^2 = 1/2 * 20 * 4 = 40J
Answered by
Bot
Change in kinetic energy = (1/2) × 20kg × (40N)2/1s2 = 3200J
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