Answer to Question #192054 in Mechanics | Relativity for Nicole

Question

A block is on a ramp, with no objects touching it other than the ramp. The block slides down the ramp at a constant velocity.  This means that...

(A) The ramp is frictionless

(B) The magnitude of the force of friction is equal to the magnitude of the component of the weight acting parallel to the surface of the ramp

(C) The magnitude of the force of friction is equal to the weight of the block

(D) The magnitude of the force of friction is equal to the magnitude of the normal force between the block and the ramp.

Answer 1

Using the first Newton's Law:

Answer:

(B) The magnitude of the force of friction is equal to the magnitude of the component of the weight acting parallel to the surface of the ramp.