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(10%) Problem 3: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the
(10%) Problem 3: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 220000 kg and a velocity of 0.28 m's in the horizontal direction, and the second having a mass of 67500 kg and a velocity of -0.13 m's in the horizontal direction. @theexpertta.com - tracking id: 5188-75-0E-46-BB99-46140. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. D What is their final velocity, in meters per second? Grade Summary VF= Deductions 0% Potential 100% sin cos( tan() 7 8 9 HOME Submissions cotan( asin( acos() 4 6 Attempts remaining: 12 (5% per attempt) atan() acotan( sinh() 1 2 3 detailed view cosh tanh() cotanh() + END O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 1% deduction per hint. Hints remaining: 2 Feedback: 2% deduction per feedback.(10%) Problem 1: A stationary soccer ball of mass m = 0.54 kg is kicked with a constant force of F = 26 N. The person's foot is in contact with the ball for t = 0.35 S. @theexpertta.com - tracking id: 5188-75-0E-46-BB99-46140. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. D A 33% Part (a) Write an expression for the speed of the ball, v;; as it leaves the person's foot. Grade Summary v; = - 16.8525 Deductions 0% Potential 100% 7 8 9 HOME Submissions a b d TA 4 Attempts remaining: 12 F h 3 (5% per attempt) detailed view m END P S t BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 1% deduction per hint. Hints remaining: 4 Feedback: 2% deduction per feedback. A 33% Part (b) What is the velocity of the ball right after contact with the foot of the person? A 33% Part (c) If the ball left the person's foot at an angle = 45 relative to the horizontal, how high h did it go in meters?(10%) Problem 2: A ball with an initial velocity of 13.5 m's and mass 2.4 kg moves at an angle 650 above the horizontal. The ball hits a vertical wall and bounces off so that it is again moving at 650 above the horizontal with the same speed. See the figure. - @theexpertta.com - tracking id: 5188-75-0E-46-BB99-46140. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. A What is the magnitude of the impulse delivered by the wall, in kilogram meters per second? Grade Summary J = Deductions 0% Potential 100% sin( cos tan() 7 9 HOME Submissions cotan() asin( acos() F 4 5 6 Attempts remaining: 12 (5% per attempt) atanC acotan( sinh() 2 3 detailed view cosh() tanh() cotanh() T 0 END O Degrees O Radians BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 1% deduction per hint. Hints remaining: 2 Feedback: 2% deduction per feedback
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