As a car goes up a hill, there is a force of friction between the ...

[tatyanajohnson]

As a car goes up a hill, there is a force of friction between the road and the tires rolling on the road. The maximum force of friction is equal to:
 a. the weight of the car times the coefficient of kinetic friction.
  b. the normal force of the road times the coefficient of kinetic friction.
  c. the normal force of the road times the coefficient of static friction.
  d. zero.

Question 2

A 250-kg crate is placed on an adjustable inclined plane. If the crate slides down the incline with an acceleration of 0.25 m/s2 when the incline angle is 25, then what should the incline angle be for the crate to slide down the plane at constant speed? Note: g = 9.8 m/s2.
 a. 12
  c. 24
  b. 21
  d. 29

[akpaschal]

Answer to Question 1

C

Answer to Question 2

C