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Asked by Jessy Last Modified
Answer Net force experience by 5kg block is
5g-T=5a-------(1)
Net force experience by 20kg trolly in horizontal direction is
T-fr=20a-------(2)
Since there is not any driving force in vertical direction acting on trolly ,trolly is in vertical equilibrium.
Normal force,N in upward direction must be equal to gravitational force,20g in downward direction
N=20g
Friction force,fr=uN,where u is kinectic friction
Fr=0.1*20g---(3)
From eq 1,2and 3
Solve for a,a=3g/25=1.2m/s2
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