(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two objects A and B, with masses m1=1.00kg and m2=2.00kg, are connected with an ideal string. Object A is moving on an ideal incline with 0 friction. Object B is moving vertically. A force F is working on object B. Its magnitude is 6.00N. Object b is accelerating downward, with a magnitude og 5.50 m/s^2.

a) Draw a free body diagram for the two objects

b) Find the tension force between the objects

c) Find the angle beta

2. Relevant equations

Newtons second law

3. The attempt at a solution

Made a free body diagram for each object. Then applied Newtons second law in the x-direction of object A and in the y-direction og object B.

A:

sigma F_x=F-T-m1*sin(beta)=m1*a

sigma F_y=n-m1*g*cos(beta)

B:

sigma F_y=f+T-m2*g=ma

Solved this for the variable T, and ended up with t=20.6 N. Obviously I am doing something wrong here, because when I try to find the angle beta, I end up with cos(beta)>1.

I am not sure whether the force F should be in the free body diagram og object A at all.

Thanks in advance.

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# Homework Help: Tension/pulley problem, Newtons second law

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