Q. An ice cart of mass 60 kg rests on a horizontal snow patch with coefficient of static friction$\ \frac{1}{3}$. Assuming that there is no vertical acceleration, find the magnitude of the maximum horizontal force required to move the ice cart $(g = 9.8\ {ms}^{- 2})$
A) 100 N
B) 110 N
C) 209 N
D) 196 N
Explanation
(d) Force applied against friction
$f_{k} = \mu_{k}R = \mu_{k}mg = \frac{1}{3} \times 60 \times 9.8 = 196\ N$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.