mg h / time
= 700 * 8 /10 = 70 * 8 = 560
A student weighing 700 N climbs at constant
speed to the top of an 8 m vertical rope in 10
s.
The average power expended by the student
to overcome gravity is most nearly
1. P = 560 W.
2. P = 87.5 W.
3. P = 5, 600 W
4. P = 1.1 W.
5. P = 875 W
2 answers
560 Watts
2 answers