A block of mass m1= 3.70 kg on a frictionless plane inclined at angle theta= 30.

Question

A block of mass m1= 3.70 kg on a frictionless plane inclined at angle theta= 30.0 degrees is connected by a cord over a massless, frictionless pulley to a second block of mass m2= 2.30 kg What are (a) the magnitude of the acceleration of each block, (b) the direction of the acceleration of the hanging block, and (c) the tension in the cord? (d) By changing angle theta, what is the minimum value of the angle (e)By using the static friction force.what is the required coeficient of the static friction of the surface

Explanation / Answer

d) For minimum theta, a = 0
ie, 3.7sin(theta)*g = 2.3 kg*g
theta = 38.43 deg

e) By using static friction
3.7sin(theta) + 3.7*mu*cos(theta) = 2.3
pit theta = 38.4 deg
mu = 6.048*10^-4

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