Block A lies on the top of block C and is connected with block B by a massless unstretchable string passing over a massless and frictionless pulley. Block B is also in contact with the block C (see picture). Masses of blocks A and B are the same MĄ =mg =m and the coefficient of friction between each of them and block C is µ. (a) What should be a constant acceleration a in horizontal direction from the left to the right of the whole system in order that blocks A and B do not move with respect to the block C? (b) What will be an acceleration of the blocks A and B if the whole system initially is at rest and then blocks A and B are released and start moving? (Hint: in both cases start with free body diagrams for blocks A and B)

Block A lies on the top of block C and is connected with block B by a massless unstretchable string passing over a massless and frictionless pulley. Block B is also in contact with the block C (see picture). Masses of blocks A and B are the same MĄ =mg =m and the coefficient of friction between each of them and block C is µ. (a) What should be a constant acceleration a in horizontal direction from the left to the right of the whole system in order that blocks A and B do not move with respect to the block C? (b) What will be an acceleration of the blocks A and B if the whole system initially is at rest and then blocks A and B are released and start moving? (Hint: in both cases start with free body diagrams for blocks A and B)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

Please help me during 1 hour

Block A lies on the top of block C and is connected with block B by a massless
unstretchable string passing over a massless and frictionless pulley. Block B is also
in contact with the block C (see picture). Masses of blocks A and B are the same
mA =ma =m and the coefficient of friction between each of them and block C is u.
(a) What should be a constant acceleration a in horizontal direction from the left
to the right of the whole system in order that blocks A and B do not move with
respect to the block C?
(b) What will be an acceleration of the blocks A and B if the whole system initially
is at rest and then blocks A and B are released and start moving?
(Hint: in both cases start with free body diagrams for blocks A and B)
A
B

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