A wooden block rests on an adjustable plane

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

A wooden block rests on an adjustable plane. The block just begins to slide when the plane is tilted to

25^{\circ}

above the horizontal. What is the coefficient of static friction between the block and the plane? (a) 0.42 (b) 0.47 (c) 0.91 (d) 0.37