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Get yer brain into gear-dynamics

RE: Get yer brain into gear-dynamics

OK, here is my take on the first one:

Spoiler:


0 < F < (m1 + m2)gµs - The blocks stay still.

(m1 + m2)gµs < F < (m1 + m2)g(µs + µk) - The blocks will move together

(m1 + m2)g(µs + µk) < F < ∞ - Block m2 will sleep from underneath block m1

"For every expert there is an equal and opposite expert"
Arthur C. Clarke Profiles of the future

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