A boy weighing 40 kg climbed in 30 seconds to the second floor of the house, located at a height of 8 m.
| December 15, 2020 | education
A boy weighing 40 kg climbed in 30 seconds to the second floor of the house, located at a height of 8 m. Determine the work and power.
m = 40kg
t = 30s
h = 8m
g = 10N / kg
A-? N-?
Ft = gm = 10n / kg * 40kg = 400N
A = Fh = 400H * 8m = 3200J
N = A / t = 3200J / 30s = 106.6W
Answer:
400H
3200J
106.6W
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