Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 4, Problem 21P
(a)
To determine
The forces acting on the book and the reaction forces to each of those forces.
(b)
To determine
The book’s acceleration
(c)
To determine
To Find: force and acceleration of the book.
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(a) A 1.00 kg book is held stationary in the hand. Find the forces acting on the book and the reaction forces to each of these. (b) The hand now exerts an upward force of 15.0 N on the book. Find the book’s acceleration. (c) As the book moves upward, the hand is quickly removed from the book. Find the forces on the book and their acceleration.
Three forces in the x-y plane act on a 6.20 kg mass: 12.30 N directed at 63o, 8.20 N directed at 146o, and 8.30 N directed at 213o. All angles are measured from the positive x-axis, with positive angles in the Counter-Clockwise direction. Calculate the magnitude of the acceleration.
Calculate the direction of the resultant force using the same sign convention as above (in degrees).
A chair of mass 12.0 kg is sitting on the horizontal floor which is not frictionless. Youpush on the chair with a force F=40.0N that is directed at and angle of 37.0 degree below thehorizontal and the chair slides along the floor. Use your FBD in No. 2 and Newton’s Lawsof Motion to calculate the Normal Force that the floor is exerts on the chair.
Chapter 4 Solutions
Physics Fundamentals
Ch. 4 - Prob. 1QCh. 4 - Prob. 2QCh. 4 - Prob. 3QCh. 4 - Prob. 4QCh. 4 - Prob. 5QCh. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - Prob. 8QCh. 4 - Prob. 9QCh. 4 - Prob. 10Q
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