Tutorials in Introductory Physics
Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 2.3, Problem 1eT

Consider the horizontal components of the forces exerted on the rope by blocks A and B. Is your answer above for the relative magnitudes of these components consistent with your knowledge of the net force on the rope?

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A contestant in a winter sporting event pushes an mm kg block of ice across a frozen lake by applying a force FF at an angle θθ below the horizontal as shown. Assume that the coefficient of static friction for ice on ice is 0.0300, and the coefficient of kinetic friction for the same is 0.0100. Let to the right be the positive x direction and up be the positive y direction for your equations. Obtain a numeric value, in newtons, for the magnitude of the maximum applied force, F, consistent with static friction when the force makes an angle 32° below the horizontal and the mass of the block is 63 kg.  Obtain a numeric value for the acceleration, a, in meters per squared seconds, when the mass of the block is 63 kg and the angle of the rope is 32° below the horizontal.
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A contestant in a winter sporting event pulls an m kg block of ice across a frozen lake by applying a force F at an angle θ above the horizontal as shown. Assume that the coefficient of static friction for ice on ice is 0.0300, and the coefficient of kinetic friction for the same is 0.0100. Let to the right be the positive x direction and up be the positive y direction for your equations. Obtain a numeric value, in newtons, for the magnitude of the maximum applied force, F, consistent with static friction when the force makes an angle 22° above the horizontal and the mass of the block is 34 kg.  Obtain a numeric value for the acceleration, a, in meters per squared seconds, when the mass of the block is 34 kg and the angle of the rope is 22° above the horizontal.

Chapter 2 Solutions

Tutorials in Introductory Physics

Ch. 2.1 - A magnet is supported by another magnet as shown...Ch. 2.1 - An iron rod is held up by a magnet as shown. The...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw separate free-body diagrams for system A and...Ch. 2.2 - Is the magnitude of the force exerted on system A...Ch. 2.2 - D. Identify all the Newton's third law...Ch. 2.2 - Rank the magnitudes of the horizontal forces that...Ch. 2.2 - Suppose the mass of each brick is 2.5 kg, the...Ch. 2.2 - Describe the motions of systems A and B. How does...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw and label separate free-body diagrams for...Ch. 2.2 - Consider the following discussion between two...Ch. 2.2 - Rank the magnitudes of all the horizontal forces...Ch. 2.2 - Compare the magnitude of the netforce on system C...Ch. 2.2 - Draw and label a free-body diagram for system C....Ch. 2.2 - At right is a free-body diagram for a cart. All...Ch. 2.3 - Describe the motions of block A, block B, and the...Ch. 2.3 - On a large sheet of paper, draw a separate...Ch. 2.3 - Identify all the Newton's third law...Ch. 2.3 - Rank, from largest to smallest, the magnitudes of...Ch. 2.3 - Consider the horizontal components of the forces...Ch. 2.3 - If the motion of the blocks is the same as in...Ch. 2.3 - Suppose the mass of the string that connects...Ch. 2.3 - A string exerts a force on each of the two objects...Ch. 2.3 - If you know that the net force on a massless...Ch. 2.3 - Predict the subsequent motions of objects A and B...Ch. 2.3 - Draw separate free-body diagrams for objects A and...Ch. 2.3 - Predict: • what will happen to object C when it is...Ch. 2.3 - Draw and label separate free-body diagrams for...Ch. 2.3 - The weight of a 200 g mass has magnitude...Ch. 2.3 - Consider the following statement about the...
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