Page 63
1. Straightforward 2nd law problem--plug and chug.
2.(a) Rearrange 2nd law in terms of mass and solve. (b) Use mass from part a and calculate weight. (page 60)
3. Solve 2nd law for a and solve.
4. (a) Find mass from weight. (b) Use mass and force in 2nd law to find a.
5. Use 2nd law to find a. Now use acceleration to find final speed using kinematics equations.
7. Use distance and final speed to find acceleration with kinematics equatons. Now use mass and acceleration to find applied (net) force.
8. Same ball and speed from previous problem. Again find acceleration with kinematics equations, then catching force using mass and 2nd law. Watch units here.
Page 68
1. Use law of gravitation, plug and chug.
2. Weight = mg
3. Same as # 2 except now g does not equal 9.8
5. Refer to section 3.12. Equation 5 will work here, but what distance should you use? Look up information on earth on p. 66
7. Use law of gravitation, but solve for one of the masses, with the other mass being that of the earth.