a body of mass 700g is kept at rest on frictionless surface.It is set into motion when a force of 4 N is applied on it .Calculate the work done by the force in 8 second .
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Answer:
F = ma
a = 4/0.7
a = 5.7 ms^-2
a = v/t
V = 5.7×8
V = 45.6 m/s
S = v × t
S = 45.6 × 8
S = 364.8 m
W = F.s
W = 4×365
W = 1460 J
Explanation:
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