|
QUIZ 4 |
| 10. 1.3x104 N. |
| 12. 3.8 m/s2 |
| 20. Even though this problems was not assigned, I have
included it in order for you to see the force diagram. (a) N > mg. On the force diagram would be a picture of an object representing the player and an arrow pointing upward labeled N, and a arrow of smaller length pointing down representing the weight magnitude labeled mg (b) While in the air N = 0, so the only arrow on the object would be pointing down, the weight. |
| 26. See extended comments on the discussion page. (a) Diagram shows 6 arrows on the mower: Normal force arrow point up, weight vector pointing down, friction vector pointing left, the applied force vector making an angle of 45 degrees below the horizontal, and the x and y components of that force. (b) 62.2 (N) (c) 199 (N) (d) 99.9 (N) |
| 28. T1/T2 = 2 |
| 52. (a) 2.6 m/s2. (b) 6.9 m/s |