A 75-kg long-jumper takes 3.1 s to reach a prejump speed of 10 m/s.
Asked by maham237 @ in Social Studies viewed by 326 People
A 75-kg long-jumper takes 3.1 s to reach a prejump speed of 10 m/s. what is his power output?
Answered by maham237 @
For this first we need to calculate acceleration of the jumper
i.e, a = v/t = 10m/s / 3.1 s
now we need to calculate the force of the jumper
i.e, f = m * a = 75 * 10/3.1
now we need to calculate the power output
for that the formula is
power output = force * velocity
= 75 * (10 / 3.1) * 3.1
= 75 *10
= 750
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