What power does the motor of a mechanical toy develop if it does 120 J of work in 1 minute?
| July 3, 2021 | education
t = 1 min = 60 s.
A = 120 J.
N -?
Power N is called a scalar physical quantity that shows how quickly mechanical work is done.
Power N is determined by the formula: N = A / t, where A is mechanical work, t is the time of work.
N = 120 J / 60 s = 2 W.
Answer: the motor of a child’s toy has a power of N = 2 W.
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