A heavy body of mass is to be dragged along a horizontal plane with

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A heavy body of mass

25\text{ kg}

is to be dragged along a horizontal plane with

\mu=\frac{1}{\sqrt{3}}

. The least force required is

(1\text{ kgf}=9.8\text{ N})

(1)

25\text{ kgf}

(2)

2.5\text{ kgf}

(3)

12.5\text{ kgf}

(4)

6.25\text{ kgf}