Fred, Betsy and Joe all pull a tire. The tire's mass is M = 75 kg. The force of each person is

The net result is that the tire accelerates slowly to the North, at a = 1.0 m/s2.

What is the angle theta?

How hard is Fred pulling?









   force        x            y
  --------------------------------
           |          |         
           |          |         
           |          |         
           |          |         
           |          |         
           |          |         
           |          |         
           |          |         
  --------------------------------
   total   |          |
  --------------------------------



                x           y
  --------------------------------
   accel   |          |
           |          |
  --------------------------------

  

If you have time ...

The kids take a break, then start pulling again. This time, things are a little different:

Can you figure out the magnitude and direction of FJoe?