Math Skills: More Practice
Math Skills: More Practice
Math Skills: More Practice
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Page 375: Acceleration<br />
1. –3.7 m/s 2<br />
2. 4.5 m/s 2<br />
3. 19 s<br />
4. 0.26 m/s 2<br />
5. 9.3 s<br />
Page 401: Newton’s Second Law<br />
1. 7.3 × 10 –2 N<br />
2. 2.39 m/s 2<br />
3. 2.1 × 10 3 N<br />
4. 6.20 m/s 2<br />
5. 65 kg<br />
Page: 415: Momentum<br />
1. a. 1.41 × 10 4 kg•m/s forward<br />
b. 2.05 × 10 4 kg•m/s forward<br />
2. 320 kg•m/s west<br />
3. 4.2 m/s along the trail<br />
4. 4.0 × 10 6 kg•m/s north<br />
5. 11 kg•m/s down the lane<br />
Page 432: Work<br />
1. 4.2 × 10 3 J<br />
2. 3.0 × 10 2 N<br />
3. 6.8 J<br />
4. 1.3 kg<br />
5. 1.3 m/s 2<br />
Page 434: Power<br />
1. 2.2 × 10 2 W<br />
2. 2 × 10 6 J<br />
3. 8.81 × 10 9 MJ<br />
4. 25 s<br />
5. 9.0 × 10 2 W<br />
Page 436: Mechanical Advantage<br />
1. 3.47<br />
2. 110 N<br />
3. 2.3 × 10 5 N<br />
4. The mechanical advantage is 1. If the fulcrum were<br />
moved closer to the input force, the mechanical<br />
advantage would decrease.<br />
5. 0.24<br />
Copyright © by Holt, Rinehart and Winston. All rights reserved.
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