Physics

Problem

25\,\text{kg}

crate is pulled by a rope that makes an angle of

20^{\circ}

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

\mu_s = 0.40

. What is the minimum tension in the rope required to start the crate moving? (Use

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

.) a)

122\,\text{N}

104\,\text{N}

91\,\text{N}

98\,\text{N}