In the figure, blocks A and B are connected by a light string. Block C is at the top of block A. The pulleys used in the system are massless. The coefficient of kinetic friction between block A and the table is μk, and the coefficient of static friction between blocks A and C is μs. What is mB so that the system accelerates, and at the same time, block C does not slide over block A? What are the acceleration of each blocks and the tension of the string? (Hint: If block A moves by 1m, what is the distance traveled by block B?) http://tinyurl.com/krfbzz3 (figure)

Question

anonymous · Answer

LOL Catherine :)

anonymous · Answer

suko na ako haha

amistre64 · Answer

seems like a lit of work, but if you break it down into smaller bits ... which is what the end questions do, it should be managable

amistre64 · Answer

B is held up by 2 strings; its force should be distributed equal between the 2,  the string taking the corner doesnt affect the Force does it?  If not, the A+C (and some coeff of friction) has to equal out half of B to remain motionless

amistre64 · Answer

to accelerate the system we need to reduce A+C by some amount and keep it within a range of options such that C relative to A remains motionless ....

anonymous · Answer

thanks mate. will try that out

amistre64 · Answer

good luck with it :)  try to apply some values to these things to get in idea of it all.  Sometimes its just to difficult to see thru the vagueness that they present.