A force applied on a body of mass 4 kg its velocity from 10 metre per second to 20 metre per second. Find the work. *
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Answer:
U = 10m/s
V = 20m/s
M = 4 kg
a = (20+10)/2 = 15m/s²
F = M×a = 60 N
S = (V²-U²)/2a = 10 m
WORK DONE = F·S = 60×10= 600 J
Explanation:
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