Problem Set 2

1.a. A person pushes a box at a 35 degree angle to the right with a force of 22 N. The box has mass 67 kg. What is the acceleration of the box? (figure 1) b.The same parameters as in a but now the person pulls the box. (figure 2)

2.A cube sits in a shape. Angle a is 60 degrees and angle b is 30 degrees. What are the two normal force magnitudes? The mass of the cube is 23 kg. (figure 3)

3. A cube of mass 10 kg is on an incline plane with angle 62 degrees. The incline is frictionless. What is the acceleration of the cube down the incline?

Figure 1 Figure 2 a b Figure 3 Surface 1 Surface 2 A