Block A with a mass of 2.25 kg rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B with a mass of 1.30 kg. The coefficient of kinetic friction between block A and the tabletop is 0.450. After the blocks are released from rest, determine the following: A B (a) free-body diagram of each block; b) speed of each block after moving 3.00 cm? (Ans: 21.8 cm/s) c) tension in the cord (Ans: 11.7 N)

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
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 8P: A 3.00-kg object is moving in a plane, with its x and y coordinates given by x = 5t2 1 and y = 3t3...
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Please show the signs in the formula on summation of forces
Block A with a mass of 2.25 kg rests on a tabletop. It is connected by a horizontal cord
passing over a light, frictionless pulley to a hanging block B with a mass of 1.30 kg. The
coefficient of kinetic friction between block A and the tabletop is 0.450. After the blocks
are released from rest, determine the following:
A
B
(a) free-body diagram of each block;
(b) speed of each block after moving 3.00 cm? (Ans: 21.8 cm/s)
(c) tension in the cord (Ans: 11.7 N)
Transcribed Image Text:Block A with a mass of 2.25 kg rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B with a mass of 1.30 kg. The coefficient of kinetic friction between block A and the tabletop is 0.450. After the blocks are released from rest, determine the following: A B (a) free-body diagram of each block; (b) speed of each block after moving 3.00 cm? (Ans: 21.8 cm/s) (c) tension in the cord (Ans: 11.7 N)
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