A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of 1 m/s2. If coefficient of sliding friction is 0.2, then force exerted by the earth on horse is
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a
3000N
b
4000N
c
5000 N
d
6000N
answer is D.
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Detailed Solution
Force of friction F1=μm1+m2gforce producing accelerationF2 = (m1 + m2)aTotal force applied by the horse = F1 + F2
A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of 1 m/s2. If coefficient of sliding friction is 0.2, then force exerted by the earth on horse is