0
(Air and rolling resistance ignored)
Power required = energy change / time taken
>
Problem:
Power required to accelerate 1000 kg car from 0 to 60 mph ( 26.82 metres / second) in 3 seconds ?
>
kinetic energy gained (energy change)= 0.5 * mass * velocity2,
>
so 0.5 * 1000 * 26.822 = 359656.2 joules
>
Power required = energy change / time taken
= 359656.2 / 3
= 119885.4 joules / second (watts)
= 119.8854 kw (about 161 bhp)
Wiki User
∙ 12y ago
Wiki User
∙ 15y agoproblem solving of power i physic
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