The coefficient of kinetic friction between block 2 and the table is μ = 0.296
Motion of blo.ck of mass M is,
T1 - Mg = Ma
T1 = M (a+g)
Equation of motion of block of mass 2M hanged at right side is,
2Mg -T1 = 2Ma
T2 = 2M (g-a)
The equation of motion of block of mass 2M on the table is,
T2 - T1 - f =2Ma
2M (g-a) - M(a+g) - μ (2Mg) = 2Ma
2g - 2a - a - g - 2μg = 2a
g - 3a - 2a = 2μg
μ = g - 5a / 2g
μ = 9.8 - 5(0800) / 2 (9.8)
The coefficient of kinetic friction μ = 0.296
The force preventing sliding against one another of solid surfaces, fluid layers, and material components is known as friction. [2] There are several kinds of friction:
Two solid surfaces in touch are op.posed to one another's relative lateral m0tion by dry friction. Dry friction is further separated into kinetic friction between moving surfaces and static friction (sometimes known as "stiction") between non-moving surfaces. Dry friction typically results from the interplay of surface characteristics known as asperities, with the exception of atomic or molecular friction.
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