Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 17.1, Problem 1bTH
To determine
The net force on block A compare to the net force on block B and how the net work done on block A compares to the net work done on block B.
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Remember to include given information, basic equations, calculations, and solutions with correct units for full credit. You are NOT to use kinematics unless otherwise stated. Captain America (100. kg) lunges vertically into the air, leaving the ground at 25.0 m/s and comes to a stop midair.
a. How much work is done on him by gravity?
b. Using the work–energy theorem, to what height did he reach?
I need help with this physics question. It relates to work/kinetic/potential energy. Approximations for average weight of a human can be used.
A. Suppose you lift a 15 kg box by a height of 1.0 m. How much work do you do in lifting the box?
Express your answer using two significant figures.
B. Instead of lifting the box straight up, suppose you push it up a 1.0-m-high ramp that makes a 30 ∘ degree angle with the horizontal, as shown in (Figure 1). Being clever, you choose a ramp with no friction. How much force is required to push the box straight up the slope at a constant speed?
Express your answer using two significant figures.
C. How long is the ramp?
Express your answer using two significant figures.
D. Use your force and distance results to calculate the work you do in pushing the box up the ramp.
Express your answer using two significant figures.
Chapter 17 Solutions
Tutorials in Introductory Physics
Ch. 17.1 - 1. A hand pushes two blocks, block A and block B,...Ch. 17.1 - Prob. 1bTHCh. 17.1 - Prob. 1cTHCh. 17.1 - 1. A hand pushes two blocks, block A and block B,...Ch. 17.1 - Draw and label arrows on the diagram at points AG...Ch. 17.1 - For points B, D, and G, determine whether the...Ch. 17.1 - In the space provided, sketch a freebody diagram...Ch. 17.1 - Is the net work done on the block positive,...Ch. 17.1 - Consider reference frame R, moving downward with...Ch. 17.1 - List the forces exerted on the block after it has...
Ch. 17.1 - Write an expression for the net work done on the...Ch. 17.1 - Prob. 5aTHCh. 17.1 - Prob. 5bTHCh. 17.1 - Prob. 5cTHCh. 17.1 - Suppose the block in the previous problem were...Ch. 17.2 - In each question below, consider the interval that...Ch. 17.2 - In each question below, consider the balls just...Ch. 17.2 - When puck 1 crosses the second dotted line, is...Ch. 17.2 - When puck 1 crosses the second dotted line, is the...Ch. 17.2 - When puck 1 crosses the second dotted line, is the...Ch. 17.3 - When puck 1 cross second dotted line, is puck 2 to...Ch. 17.3 - Draw an arrow for each glider to represent the...Ch. 17.3 - Consider the following incorrect statement:...Ch. 17.3 - A firecracker is at rest on a frictionless...Ch. 17.3 - A block slides down a frictionless incline. The...Ch. 17.3 - Suppose the incline in part b is now placed on a...Ch. 17.3 - Two blocks, A and B. are connected by a massless...Ch. 17.3 - Prob. 3aTHCh. 17.3 - Prob. 3bTHCh. 17.3 - Draw momentum vectors of gliders A and B in the...Ch. 17.3 - Prob. 3dTHCh. 17.3 - Use your momentum vectors from part c to determine...Ch. 17.3 - Prob. 3fTHCh. 17.3 - In the table at right, draw the momentum vectors...Ch. 17.3 - Prob. 4bTHCh. 17.3 - Prob. 4cTHCh. 17.3 - Prob. 4dTHCh. 17.3 - Prob. 4eTHCh. 17.3 - Prob. 4fTHCh. 17.4 - In the space provided, draw separate arrows...Ch. 17.4 - Prob. 1bTHCh. 17.4 - In the space provided, draw separate arrows for...Ch. 17.4 - Prob. 2bTHCh. 17.4 - Construct and label a vector showing the initial...Ch. 17.4 - Object A collides on a horizontal frictionless...Ch. 17.4 - On the same horizontal surface, object C collides...Ch. 17.4 - Consider the following incorrect statement:...
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