M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

A block of mass m rests atop an incline at an angle of θ and with a coefficient of static friction of μ. At the current angle, the block slides down the incline when released. Which of the following would help prevent the block from sliding down the incline when released?

I. Decreasing θ
II. Increasing m
III. Decreasing μ

A

I only

B

II and III only

C

I and II only

D

I and III only