An essentially weightless shove is 120 cm long. Someone holds it horizontally, supporting it with their left hand at the shovel's center of gravity and their right hand 80.0 cm to the right of the c.g. The shovel contains a 20.0-N rock whose c.g. is 8.00 cm to the right of the edge of the shovel. How much force does the person exert down on the handle? [+(0.80m)(F)] + [-(0.08m)(20.0N)]=0 F=1.6Nm/0.80m -> F = 2.0N, but the answer key says it should be 8.0N. Where is my error?
An essentially weightless shove is 120 cm long. Someone holds it horizontally, supporting it with their left hand at the shovel's center of gravity and their right hand 80.0 cm to the right of the c.g. The shovel contains a 20.0-N rock whose c.g. is 8.00 cm to the right of the edge of the shovel. How much force does the person exert down on the handle? [+(0.80m)(F)] + [-(0.08m)(20.0N)]=0 F=1.6Nm/0.80m -> F = 2.0N, but the answer key says it should be 8.0N. Where is my error?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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An essentially weightless shove is 120 cm long. Someone holds it horizontally, supporting it with their left hand at the shovel's center of gravity and their right hand 80.0 cm to the right of the c.g. The shovel contains a 20.0-N rock whose c.g. is 8.00 cm to the right of the edge of the shovel. How much force does the person exert down on the handle?
[+(0.80m)(F)] + [-(0.08m)(20.0N)]=0
F=1.6Nm/0.80m -> F = 2.0N, but the answer key says it should be 8.0N. Where is my error?
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