A body of mass 50g is moving as a horizontal floor with a speed of25cm/sec.It takes 0.2sec to stop find force of friction on the body.
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Explanation:
F=ma
m=50g
v =25cm
t =0.2s
a=v\t
so, 25\0.2
=125
now
f=ma
F = 50×125
= - 6,250
minus because the force is in opposite direction
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