Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 5 - Think and Solve: 27

Answer

$500 \frac{m}{s^{2}}$. 1.5 N. 1.5 N.

Work Step by Step

a. The acceleration is the change in velocity divided by the time interval. $$a = \frac{25 m/s-0}{0.05 s} = 500 \frac{m}{s^{2}}$$ b. Use Newton's second law. $$F = ma = (0.003 kg)(500 \frac{m}{s^{2}}) = 1.5 N$$ c. By Newton’s third law, the same amount, 1.5 N.
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