If the tension in the string in figure is 16 N and the acceleration of each block is 0.5ms-2 , find the friction coefficients at the two contacts with the blocks.
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a
μ1=0.75,μ2=0.06
b
μ1=0.06,μ2=0.75
c
μ1=0.85,μ2=0.04
d
μ1=0.85,μ2=0.002
answer is A.
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Detailed Solution
m1=2kg and m2=4kgT−μ1m1g=ma⇒μ1=1519.6=0.75m2gsinθ−μ2m2gcosθ−T=m2a⇒μ2=117.32=0.06