Laws Of Motion Question 111

Question: A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of 1ms2 . If the coefficient of sliding friction is 0.2, then the force exerted by the horse in forward direction is [SCRA 1998]

Options:

A) 3000 N

B) 4000 N

C) 5000 N

D) 6000 N

Show Answer

Answer:

Correct Answer: D

Solution:

Net force in forward direction = Accelerating force + Friction =ma+μ mg=m(a+μ g)=(1500+500)(1+0.2×10)

=2000×3=6000 N



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