Superman throws a 2400-N boulder at an adversary. What

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

ISBN: 9780321675460 31

Solution for problem 17E Chapter 4

University Physics | 13th Edition

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University Physics | 13th Edition

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Problem 17E

Superman throws a 2400-N boulder at an adversary. What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 12.0 m/s2?

Step-by-Step Solution:

Step 1 of 3

Solution 17E According to Newton's 2 nd law F=ma And we have relation between mass and weight w=mg m= g = 24002N 9.8 m/s =244.9 kg Mass of the boulder is 244.9 kg Now F=ma 2 =244.9 kg×12 m/s =2940 N 2940 N horizontal force is required to Superman

Step 2 of 3