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 3.2, Problem 1cT

Use Newton's second law and the definition of acceleration to derive an equation for each cart relating the net force on the chart to the change in velocity of the cart ( Δ υ A or Δ υ B ) and the time interval ( Δ t A or Δ t B ) that the cart spends between the two marks.

1. Is the quantity m A | Δ υ A | greater than, less than, or equal to m B | Δ υ B | ? Explain how you can tell.

For a constant net force, the quantity F net Δ t is called the impulse imparted to the object.

2. Is the magnitude of the impulse imparted to cart A greater than, less than, or equal to the magnitude of the impulse imparted to cart B? Explain your reasoning.

3. Write an equation showing how the impulse imparted to cart A is related to the change in momentum vector of cart A ( Δ p A ) , where momentum, denoted by p , is the product of the mass and velocity of the object.

This relationship is known as the impulse-momentum theorem.

4. Is the magnitude of the final momentum of cart A ( Δ p A t ) greater than, less than or equal to the magnitude of the final momentum of cart B ( Δ p B s ) ? Explain.

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Chapter 3 Solutions

Tutorials in Introductory Physics

Ch. 3.2 - Use Newton's second law and the definition of...Ch. 3.2 - How does the net work done on cart A(Wnet,A)...Ch. 3.2 - Refer again to the discussion among the three...Ch. 3.2 - Release the ball so that it rolls straight toward...Ch. 3.2 - Release the ball at an angle to the ramp as shown...Ch. 3.2 - How does the direction of the net force on the...Ch. 3.2 - How does the change in kinetic energy of the ball...Ch. 3.2 - For motion 1, draw vector in region II of the...Ch. 3.2 - For motion 2, draw vectors in region II of the...Ch. 3.2 - Consider the change in momentum vectors you...Ch. 3.3 - What differences between gliders M and N could...Ch. 3.3 - For experiment 1,draw and label separate free-body...Ch. 3.3 - In the spaces provided, draw and label vectors to...Ch. 3.3 - A student compares the final speeds of gliders M...Ch. 3.3 - A. Suppose that glider D is free to move and...Ch. 3.3 - A second experiment is performed in which glider D...Ch. 3.3 - Consider the two experiments described above. When...Ch. 3.3 - When the momentum of an object or system of...Ch. 3.3 - Two students the second experiment, in which...Ch. 3.4 - Draw separate free-body diagrams for each block...Ch. 3.4 - Rank the magnitudes of all the horizontal forces...Ch. 3.4 - The velocity vectors for blocks A and B are shown...Ch. 3.4 - Use your knowledge of the velocities and changes...Ch. 3.4 - Draw and label a free-body diagram for system C at...Ch. 3.4 - Write an equation for the momentum of system C in...Ch. 3.4 - Generalize from your results to answer the...Ch. 3.4 - Imagine a single object whose mass is equal to the...Ch. 3.4 - What are the external forces exerted on system C...Ch. 3.4 - The momentum vectors of each block before the...Ch. 3.4 - Draw arrows that represent the direction of the...
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