Slanted surfaces with friction: A 4.00-kg block rests on a 30.0° incline as shown in the figure. If the coefficient of static friction between the block and the incline is 0.700, what magnitude horizontal force F must act on the block to start it moving up the incline?
A) 34.0 N
B) 51.1 N
C) 54.7 N
D) 84.0 N
E) 76.4 N

Question

Slanted surfaces with friction: A 4.00-kg block rests on a 30.0° incline as shown in the figure. If the coefficient of static friction between the block and the incline is 0.700, what magnitude horizontal force F must act on the block to start it moving up the incline? 
A) 34.0 N 
B) 51.1 N 
C) 54.7 N 
D) 84.0 N 
E) 76.4 N

Quizplus · Accepted Answer

The Answer of Slanted surfaces with friction: A 4.00-kg block rests on a 30.0° incline as shown in the figure. If the coefficient of static friction between the block and the incline is 0.700, what magnitude horizontal force F must act on the block to start it moving up the incline? 
A) 34.0 N 
B) 51.1 N 
C) 54.7 N 
D) 84.0 N 
E) 76.4 N

Slanted Surfaces with Friction: a 4