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
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter5: Displacement And Force In Two Dimensions
Section: Chapter Questions
Problem 8STP
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