Which product of two quantities is equal to power?
A force x distance
B force x velocity
C work done x time
D work done x velocity
ANSWER: B
The Physics Behind
- Power is defined as the rate of doing work.
- In equation form, power is work done divided by time.
P = W / t
but W = F x d
so P = F x d / t
but d/t = v
so P = F x v.
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