For the combined system which of the following is

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For the combined system, which of the following is true A. The kinetic energy of case (a) is greater than the kinetic energy of case (b) B. The kinetic energy of case (b) is greater than the kinetic energy of case (a) A. The kinetic energy of the two is the same. B. Not enough info to tell
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Kinematics Moments Work Kinetic Energy Momentum G M α G I = dt Impulse s d M s d M dt 2 1 - U = Rigid Body Dynamics Work- Energy Newton’s 2 nd Law Impulse- Momentum F M G a m M = 1 2 T T - 2 2 1 2 2 1 G G mv I T + = ϖ t M M M
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1. The angular momentum of a rotating two- dimensional rigid body about its center of mass G is A) m v G . B) I G v G . C) m ϖ . D)I G ϖ . 2. If a rigid body rotates about a fixed axis passing through its center of mass, the body’s linear momentum is A) a constant. B) zero. C) m v G . D) I G ϖ . Reading Quiz
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If only engine A is fired, about which axis does the shuttle tend to rotate? The space shuttle has several engines that exert thrust on the shuttle when they are fired. By firing different engines, the pilot can control the motion and direction of the shuttle.
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