A Block Is Placed on a Plane Whose Angle of Inclination

Multiple Choice

A block is placed on a plane whose angle of inclination is 30 ^o . The coefficients of static and kinetic friction for the block on the inclined plane are 0.7 and 0.5, respectively. The block

A) remains stationary on the inclined plane.
B) accelerates down the inclined plane.
C) travels down the inclined plane at constant velocity.
D) travels up the inclined plane at constant velocity.
E) accelerates up the inclined plane.