A crate lies on a horizontal warehouse floor where the coefficient of static friction…

PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

10\,\text{kg}

crate lies on a horizontal warehouse floor where the coefficient of static friction between the crate and the floor is

\mu_s = 0.40

. A worker pulls the crate by applying a force

F

at an angle of

30^{\circ}

above the horizontal. (a) Draw a clearly labelled free-body diagram for the crate. (b) Calculate the minimum magnitude of

F

required to make the crate just start moving along the floor. (Take

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