1. a) If there is an external force acting on a system, can you please tell whether the momentumwould be changed? If the momentum is changed, can you link the change in momentum to anotherphysical quantity?1b) Define Impulse. Mention two units of Impulse. Is it a vector or scaler? If it is a vector, whatwould be the direction of impulse?1c) A golf ball with a mass 46.0 g strikes a wall with an initial speed of 140 km/h along –x-direction and bounces back at the speed of 145 km/h flying in xy plane, which makes 30° with thehorizontal. Calculate the impulse vector in terms of magnitude and direction. If the duration of thecollision is 0.900 ms, determine the magnitude of the average force acting on the ball during thecollision.2+1

1. a) If there is an external force acting on a system, can you please tell whether the momentum would be changed? If the momentum is changed, can you link the change in momentum to another physical quantity? 1 b) Define Impulse. Mention two units of Impulse. Is it a vector or scaler? If it is a vector, what vould be the direction of impulse? 1

1. a) If there is an external force acting on a system, can you please tell whether the momentum would be changed? If the momentum is changed, can you link the change in momentum to another physical quantity? 1 b) Define Impulse. Mention two units of Impulse. Is it a vector or scaler? If it is a vector, what vould be the direction of impulse? 1

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 10PQ: In a laboratory, a cart collides with a wall and bounces back. Figure P11.10 shows a graph of the...

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Similar questions

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In a laboratory, a cart collides with a wall and bounces back. Figure P11.10 shows a graph of the force exerted by the wall versus time. a. Find the impulse exerted by the wall on the cart. b. What is the average force exerted by the wall on the cart? c. If the cart has a mass of 0.448 kg, what is its change in velocity? d. Make a sketch of the situation. Include a coordinate system and explain the significance of the signs in parts (a) through (c). FIGURE P11.10
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a man of mass m1 = 70.0 kg is skating at v1 = 8.00 m/s behind his wife of mass m2 = 50.0 kg, who is skating at v2 = 4.00 m/s. Instead of passing her, he inadvertently collides with her. He grabs her around the waist, and they maintain their balance. (a) Sketch the problem with before-and-after diagrams, representing the skaters as blocks. (b) Is the collision best described as elastic, inelastic, or perfectly inelastic? Why? (c) Write the general equation for conservation of momentum in terms of m1, v1, m2, v2, and final velocity vf. (d) Solve the momentum equation for vf. (e) Substitute values, obtaining the numerical value for vf, their speed after the collision.