A 45.0 kg girl is standing on a 153 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The giri begins to walk along the plank at a constant velocity of 1.40 m/s relative to the plank. (Let the direction the girl is moving in be positive. Indicate the direction with the sign of your answer.) (a) What is her velocity relative to the surface of ice? m/s (b) What is the velocity of the plank relative to the surface of ice? m/s

A 45.0 kg girl is standing on a 153 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The giri begins to walk along the plank at a constant velocity of 1.40 m/s relative to the plank. (Let the direction the girl is moving in be positive. Indicate the direction with the sign of your answer.) (a) What is her velocity relative to the surface of ice? m/s (b) What is the velocity of the plank relative to the surface of ice? m/s

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Description: A 45.0 kg girl is standing on a 153 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of1.40 m/s relative to the plank. (

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 6P: A girl of mass mg is standing on a plank of mass mp. Both are originally at rest on a frozen lake...

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