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## Homework Statement

Two blocks are connected by a string that goes over an ideal pulley as shown in the figure and pulls on block A parallel to the surface of the plane. Block A has a mass of 3.00 kg and can slide along a rough plane inclined 30.0° to the horizontal. The coefficient of static friction between block A and the plane is 0.400. What mass should block B have in order to start block A sliding up the plane?

## Homework Equations

box A- sum of x & sum of y

box B- sum of y

plug into each other

## The Attempt at a Solution

m2=(ms*m1*sin(theta)+m1*cos(theta)

=3.198

Thanks.