Force Problems Worksheet

FORCE PROBLEMS WORKSHEET

1. A. What is the 2nd Law formula? ______

B. Draw the triangle with the 2nd Law formula.

C. What is net force? ______

Show your work on #’s 2-5 2. A. A boy pulls a wagon with a force of 7 Newtons east as another boy pushes it with a force of 4 Newtons east, the sliding frictional force is 3 Newtons. What is the net force?

B. If the wagon is accelerating at a rate of 2 m/s2, what is the mass of the wagon?

3. A. Mr. Smith and his wife (Mrs. Smith) were trying to move their new chair. Mr. Smith pulls with a force of 30 N while Mrs. Smith pushes with a force of 25 N in the same direction. What is the net force?

B. If the chair has a mass of 40 kg. What is the rate of acceleration?

4. Two classes are playing tug of war. Ms.House’s class pulls with a force of 60 N. Mr. Ammon’s class pulls with a force of 45 N in the opposite direction. What is the net force? And who won?

5. A. A car with a mass of 400 kg is accelerating at a rate of 3. m/s2. What is the net force acting on the car?

B. If the car is accelerating, and the forward force of the engine is 950 Newtons, how much frictional force is there? Draw a picture showing the forces.