A hand pushes a 3 kg block along a table from point A to point C as shown in the figure below. The table has been prepared so that the left half of the table (from A to B) is frictionless. The right half (from B to C) has a non-zero coefficient of frictionequal to µ. The hand pushes the block the full distance from A to C using a constant force of 5 N. The block starts off at rest at point A and comes to a stop when it reaches point C. The distance from A to B is 0.5 m and the distance from B to C is also0.5 m.We will consider the block by itself as our system so all forces on the block are external.Initial positionof blockFinal positionofblockPno frictionfrictionABC-1½ m1½ m D. From A to B:What is the work done by the pushing force?What is the change in kinetic energy of the block?What is the speed of the block at point B?m/sE. From B to C:What is the work done by the pushing force?What is the change in kinetic energy of the block?JWhat is the work done by the friction force?JWhat is the coefficient of friction?

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pusnes a 3 Kg block along table from point A to point C as showr in the figure below been prepared so ness. The ual to u. The hand pushes the block the full distance from A to C using a constant force of 5 N. The block starts off at rest at point A and comes to a stop when it reaches point C. The distance from A to B is 0.5 m and the distance from B to Cis 5 m. e will consider the block by itself as our system so all forces on the block are external. Initial position of block Ainal positton ofblock P no friction / friction A B C

pusnes a 3 Kg block along table from point A to point C as showr in the figure below been prepared so ness. The ual to u. The hand pushes the block the full distance from A to C using a constant force of 5 N. The block starts off at rest at point A and comes to a stop when it reaches point C. The distance from A to B is 0.5 m and the distance from B to Cis 5 m. e will consider the block by itself as our system so all forces on the block are external. Initial position of block Ainal positton ofblock P no friction / friction A B C

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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Question

A hand pushes a 3 kg block along a table from point A to point C as shown in the figure below. The table has been prepared so that the left half of the table (from A to B) is frictionless. The right half (from B to C) has a non-zero coefficient of friction
equal to µ. The hand pushes the block the full distance from A to C using a constant force of 5 N. The block starts off at rest at point A and comes to a stop when it reaches point C. The distance from A to B is 0.5 m and the distance from B to C is also
0.5 m.
We will consider the block by itself as our system so all forces on the block are external.
Initial position
of block
Final position
ofblock
P
no friction
friction
A
B
C
-1½ m
1½ m

D. From A to B:
What is the work done by the pushing force?
What is the change in kinetic energy of the block?
What is the speed of the block at point B?
m/s
E. From B to C:
What is the work done by the pushing force?
What is the change in kinetic energy of the block?
J
What is the work done by the friction force?
J
What is the coefficient of friction?

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