A classical mechanics problem by Ken Osako

Classical Mechanics Level 2

When the three blocks in the figure are released from rest, they accelerate with a magnitude of 1 m/s 2 1 \text{ m/s}^2 . Block 1 has mass M M , block 2 has 2 M 2M , and block 3 has 2 M 2M . What is the coefficient of kinetic friction between block 2 and the table?

Take g = 9.8 m/s 2 g=9.8 \text{ m/s} ^2 .

0.245 0.304 0.524 0.357

Ken Osako by Ken Osako , 23, Philippines

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1 solution

Ken Osako
Apr 10, 2016

4 Helpful 0 Interesting 0 Brilliant 0 Confused

since the gravity is 9.8, I've just predicted the denominator will be the factor of 98 :v

Resha Dwika Hefni Al-Fahsi - 5 years, 2 months ago

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Nice you figure that out hahahaha, Brilliant :). Because of that you can just solve this problem within 10 seconds haha.

Ken Osako - 5 years, 2 months ago

Perhaps, there could be a simpler and shorter solution.

Swapnil Das - 5 years, 1 month ago

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