For each of the following: Draw a free body diagram illustrating all forces acting on the object.
Draw a free body diagram illustrating the net force acting on the object.
Determine the friction force exerted on the object.
Determine the coefficient of static friction for object.
1. A wooden box weighing 20. N remains stationary when a force of 8.0 N is exerted in the
(+) horizontal axis.
2. A 30.0 kg block is pushed with a 75N force on a concrete floor at a uniform velocity.
3. A 50.N force is exerted on a 4.0 kg block. The block accelerates at 10. m/s2. Friction is
present within the system.
4. CHALLENGE QUESTION (optional): This is similar to the previous questions but now you
need to figure out vector components using trigonometry. Remember that SOHCAHTOA
stuff!
A 20.0 kg block slides down a 30.0° angle ramp at a uniform velocity.
a. Determine the friction force exerted on the block.
b. Determine the normal force exerted on the block.
c. Determine the coefficient of friction on the surface of the ramp.