If the work done by a motor remains the same but the time taken is reduced to…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
If the work done by a motor remains the same but the time taken is reduced to one-third of its original value, the average power of the motor becomes
(a) unchanged
(b) three times the original value
(c) nine times the original value
(d) one-third of the original value