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23 Nov 2019

Can someone give me step by step instructions on how to solvethiskind of problem? Thank you:


4) A 10 kg block is on top of a 15 kg block and the 15 kgblockis on a frictionless ice surface. The bottom block ismovingleft. The coefficient of sliding friction between thetwoblocks is 0.5. The top block is skidding (sliding)rightwardrelative to the bottom block. The bottom block ismovingleft.

a) Draw a free-body force diagramforeach block labeling the vectors with symbols that identify thetypeof force.

b) Label any 3rd lawpairof forces.

c) What is the acceleration ofthebottom block when the top block is skidding across the bottomblock?



1) A 30.0 kg block is on ainclinethat slopes upward and to the right at 30 degrees.

a) Draw this system at the right.

b) What is the acceleration oftheblock if it is released from rest ?

c) What is the acceleration oftheblock if its initial velocity is rightward ?

d) What is the size of the normalforce?

e) Basedon your results for c) the acceleration, do the blocks speedup orslow down. EXPLAIN

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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Two blocks stacked on top of each other are being pulled using apulley as shown in the figure. Assume that the coefficient ofkinetic friction is 0.5 between the blocks and 0.25 between thelower block and the surface it is on.

________

I 1.5kg I-----------------------OI

I________I__________ OI

I 7.5kg I OI

I___________________I


a) Draw a free body diagram for the top block and one for thebottom block. Indicate forces related by Newton’s third law.

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