College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Perform the following calculations and express your answer using the correct number of significant digits.
(a) A woman has two bags weighing 13.5 pounds and one bag with a weight of 10.2 pounds. What is the total weight of the
bags?
(b) The force F on an object is equal to its mass m multiplied by its acceleration a . If a wagon with mass 55 kg
accelerates at a rate of 0.0255 m/s2
, what is the force on the wagon? (The unit of force is called the newton, and it is
expressed with the symbol N.)
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