Question

48) During an experiment in physics class, a student places a large block on a plank.

The student raises one end of the plank to form an incline until just before the
block starts to slide down. The block experiences a force of 26 N parallel to the
incline and 42 N perpendicular to the incline. What is the coefficient of static
friction such that the block stays at rest?

Answer 1

54 because you multiply by 5 and then divide by 69

Answer 2

Below

Step-by-step explanation:

The block does not slide, so the force of friction equals the down the slope force. Ff = 26 n the Fn is given as 42 N

Definition of static coefficient of friction = Ff/Fn = 26/42 = .62