Question

33. A 45N boy rides a skateboard down the sidewalk with a constant velocity. He applies a steady force of 8 N to maintain his speed. Draw a free body diagram to illustrate all forces acting on the boy. A) What is the frictional force he experiences? B) What is his acceleration? C) What is the normal force?​

Answer 1

See answers below

Step-by-step explanation:

A) The frictional force is 8 N in the opposite direction of the applied force (8 N).

B) The acceleration is zero because the boy is skateboarding at a constant velocity.

C) The normal force is 45 N in the opposite direction of the gravitational force (45 N).

For the free body diagram, draw a boy/dot with an upward arrow of 45 N, a downward arrow of 45 N, a right arrow of 8 N, and a left arrow of 8 N.