11°
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter1: Variables, Expressions, And Integers
Section1.8: The Coordinate Plane
Problem 11E
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Question
20. A 10-pound weight is lying on a sit-up bench at the gym. If the bench is inclined at an angle of 11 degrees, there are three forces acting on the weight. N is called the normal force and it acts in the direction perpendicular to the bench. F is the force due to friction that holds the weight on the bench. If the weight does not move, then the sum of these three forces is 0.
Find the magnitude of N and the magnitude of F. Apply the rules regarding the use of significant digits when determining your answers.
N= ? And F=? Lbs
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