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tutorial3_sp10

# tutorial3_sp10 - Physics 2010 Spring 2010 Recitation...

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1 Physics 2010 – Spring 2010 Recitation Assignment 3 NAME ________________________ Section Day (circle): M Tu W Th F Section Time: 8a 10a 12p 2p 4p TA Name:_____________________ Work together in groups of 3 or 4! Use the space provided for all of your answers. This week's assignment covers forces, Newton's laws, and the use of free-body diagrams. (Ch. 4) Remember that free-body diagrams should show only one object and the (labeled) vector forces on that object! 1. Drawing free-body diagrams for objects at rest. a) Draw a free-body diagram for a cart of mass m resting on a table. (The free-body diagram is of the cart.) Label every force with the type of force (normal, gravitational, etc.). b) How does your free-body diagram show the relative magnitude of the forces? What observation did you make to get information about the relative magnitude of the forces? Express this information as an equation. c) A brick of mass M (heavier than the cart) is placed on top of the cart. The table does not collapse. Now draw two free-body diagrams: one for the cart, the other for the brick. Label each force clearly with its cause and effect. For example, the force of the table on the cart should be labeled as “F table on cart ”.

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tutorial3_sp10 - Physics 2010 Spring 2010 Recitation...

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