A 45.0-kg girl is standing on a 167-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 of 1.30 m/s to the right 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? 0.782 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s (b) What is the velocity of the plank relative to the surface of ice? -0.518 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s
A 45.0-kg girl is standing on a 167-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 of 1.30 m/s to the right 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? 0.782 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s (b) What is the velocity of the plank relative to the surface of ice? -0.518 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![A 45.0-kg girl is standing on a 167-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
of 1.30 m/s to the right 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?
0.782
Your response differs from the correct answer by
more than 10%. Double check your calculations.
m/s
(b) What is the velocity of the plank relative to the
surface of ice?
-0.518
Your response differs from the correct answer by
more than 10%. Double check your calculations.
m/s](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb5274d79-7726-4e43-a51d-c018b5b664c8%2F20b0ff57-7b40-46cc-af99-bd23c72a925a%2Fsrg27f9_processed.png&w=3840&q=75)
Transcribed Image Text:A 45.0-kg girl is standing on a 167-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
of 1.30 m/s to the right 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?
0.782
Your response differs from the correct answer by
more than 10%. Double check your calculations.
m/s
(b) What is the velocity of the plank relative to the
surface of ice?
-0.518
Your response differs from the correct answer by
more than 10%. Double check your calculations.
m/s
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