An electric motor creates a tension of 9000 N in a hoisting cable and reels it in at the rate of |
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a) |
18 kW |
b) |
15 kW |
c) |
81 W |
d) |
225 W |
An electric motor creates a tension of 9000 N in a hoisting cable and reels it in at the rate of |
|||||||
a) |
18 kW |
b) |
15 kW |
c) |
81 W |
d) |
225 W |