Physics - Chapter 4 Study Guide
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1. Define each of the following:
        a) inertia
        b) weight
        c) mass

2. What does a force do?

3. Which direction does the gravitational force on any object act?

4. Describe an action-reaction pair for a golf club hitting a golf ball.

5. What effect will a change in the force of gravity acting on an object have on the object?

6. State Newton’s Second Law.

7. What would a free-body diagram of an apple falling from a tree in the presence of air resistance show?

8. What is the vertical and horizontal component of a 59.3 N force applied to the handle of a lawn mower at an angle of 35.2E with the horizontal?

9. If a crate with a mass of 98.3 kg slides down a ramp with an acceleration of 0.92 m/s2, what is the coefficient of kinetic friction between the ramp and the crate?

10. A bucket of sand weighing 66.9 N is supported by a rope. What is the tension in the rope if the bucket of sand is accelerated upward at a rate of 2.00 m/s2?

11. A piano with a mass of 1987 kg moving down a 27.2E incline hits a rough spot and slides 5.3 m before coming to halt. What is the acceleration of the piano if the coefficient of friction between the piano and the incline is 0.673?

12. A child pulls on a toy to the left with a force of 25 N while another child pulls on the same toy to the right with a force of 19 N. What is the magnitude and direction of the net external force on the toy?

13. A child pulls on the handle of a wagon with a force directed 33.2E above the horizontal. If the horizontal component of the force on the wagon is 54.9 N, what is the force exerted on the handle?

14. Two perpendicular forces, one of 38 N directed to the left and the second of 46.3 N directed downward, act simultaneously on an object with a mass of 23.6 kg. What is the magnitude of the resultant acceleration of the object?

15. A crate is pulled with a rope at a constant velocity across a horizontal floor. If a force of 62.0 N is being applied to the rope at an angle of 47.2E to the floor, what is the force of friction between the crate and the floor?

16. What force is exerted by a 29.3 kg object accelerating at a uniform -2.45 m/s2?