Three ice skaters meet at the center of a rink and each stands at rest facing the center, within arm's reach of the other two. On a signal, each skater pushes himself away from the other two across the frictionless ice. After the push, skater A with mass m = 95.0 kg moves in the negative y-direction at 2.00 m/s and skater B with mass m, = 85.0 kg moves in the negative x-direction at 2.50 m/s. Find the x- and y-components of the 80.0 kg skater C's velocity (in m/s) after the push. HINT m/s V CX m/s V CY II II

Three ice skaters meet at the center of a rink and each stands at rest facing the center, within arm's reach of the other two. On a signal, each skater pushes himself away from the other two across the frictionless ice. After the push, skater A with mass m = 95.0 kg moves in the negative y-direction at 2.00 m/s and skater B with mass m, = 85.0 kg moves in the negative x-direction at 2.50 m/s. Find the x- and y-components of the 80.0 kg skater C's velocity (in m/s) after the push. HINT m/s V CX m/s V CY II II

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Description: Three ice skaters meet at the center of a rink and each stands at rest facing the center, within arm's reach of the other two. On a signal,each skater pushes himself away from the other two across the frictionless ice. After the push, skater A with

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter6: Momentum, Impulse, And Collisions

Section: Chapter Questions

Problem 31P: 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...

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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.
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