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PremedBeauty

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A stationary arrangement of two crayon boxes and three cords. Box A has a mass of 11.0kg and is on a ramp at angle θ=30.0 degrees; box B has a mass of 7.00 kg and hangs on a cord. The cord connected to Box A is parallel to the ramp which is frictionless (a) What is the tension in the upper cord, and (b) what angle does that cord make with the horizontal?

Let TA = tension force in the cord attached to block A.

TB = tension force in the cord attached to block B.

TC = tension force in the cord attached to ceiling.

φ = angle of cord attached to ceiling with the horizontal

θ = angle of ramp = 30 degrees

1.Ta-magsin

2.Tb-mbgsin=0

3.Tcsin=magsin+mbg

4.Tccos=magsin

5=T^2c(cos^2+sin^2)

that's what I know so far (on what equations to use for each step)

Let TA = tension force in the cord attached to block A.

TB = tension force in the cord attached to block B.

TC = tension force in the cord attached to ceiling.

φ = angle of cord attached to ceiling with the horizontal

θ = angle of ramp = 30 degrees

1.Ta-magsin

2.Tb-mbgsin=0

3.Tcsin=magsin+mbg

4.Tccos=magsin

5=T^2c(cos^2+sin^2)

that's what I know so far (on what equations to use for each step)

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