Question

A car of weight 20,000 N climbs up a hill at steady speed of 8m/s, gaining a height of 120 m in 100 S.
calculate:
a) work done
b) power​

Answer 1

Given:
W=mg=20,000N=2000kg

v=8m/s
h=120m
t=100s
g=10m/s²
W=mgh=2000x10x120=2.4x 10⁶J
P=W/T
2.4 x 10 ⁶/100
2.4 x10⁴ W

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