Two forces are applied to a 4.0 kg cart on a rough surface as shown. At a certain instant, force A is 12 N to the right, and force B is 20 N to the left. The friction force is 2.0 N. What is the acceleration of the cart at this instant, in m/s (Hint: What is the direction of the friction in this case? Draw a free-body diagram.) Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

Two forces are applied to a 4.0 kg cart on a rough surface as shown. At a certain instant, force A is 12 N to the right, and force B is 20 N to the left. The friction force is 2.0 N. What is the acceleration of the cart at this instant, in m/s (Hint: What is the direction of the friction in this case? Draw a free-body diagram.) Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

Name: Two forces are applied to a 4.0 kg cart on a rough surface as shown.
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Description: Two forces are applied to a 4.0 kg cart on a rough surface as shown. At a certain instant, force A is 12 Nto the right, and force B is 20 N to the left. The friction force is 2.0 N. What is the acceleration of the cartat this instant, in m/s? (Hint:

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter1: A Physics Toolkit

Section: Chapter Questions

Problem 7STP

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