A constant frictional force of 32N acts on block of mass m.Calculate the magnitude of the angle theta that will keep the system moving at constant velocity.
2 answers
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normal force = m g - T sin A if pull force T is up at angle A
friction force = mu ( m g - Tsin A)
if no acceleration then T cos A = friction force = mu(mg-T sinA)
and friction force, mu(mg-Tsin A) = 32
T cos A = 32 = mu m g - mu T sin A
T (cos A + mu sin A) = mu m g
it would be helpful to know mu and m
friction force = mu ( m g - Tsin A)
if no acceleration then T cos A = friction force = mu(mg-T sinA)
and friction force, mu(mg-Tsin A) = 32
T cos A = 32 = mu m g - mu T sin A
T (cos A + mu sin A) = mu m g
it would be helpful to know mu and m