Consider a Crate of Mass 5

Multiple Choice

Consider a crate of mass 5.0 kg resting on the floor. A man pushing along a line making an angle of 15° with the plane of the floor is overcoming the frictional force (coefficient µ_k = 0.45) and sliding the crate with an acceleration of 1.0 m/s². The minimum force necessary to produce this motion is

A) 15 N.
B) 23 N.
C) 32 N.
D) Hold it! Insufficient information is given for an unambiguous response.