A crate rests on a level floor

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

Problem

25\,\text{kg}

crate rests on a level floor. The coefficient of static friction between the crate and the floor is

\mu_s = 0.40

. What is the minimum horizontal force that must be applied to the crate to make it start sliding? (Use

g = 9.8\,\text{m}\!/\!\text{s}^2

.) (a)

245\,\text{N}

(b)

62\,\text{N}

(c)

98\,\text{N}

(d)

612\,\text{N}