**1. A 77.00 Nt object (denoted as object 1) rests on the ground. A light cord is connected to this object which runs vertically upward over a light frictionless pulley and is attached to another object denoted as object 2.**

a) Calculate the force that the ground exerts on object 1 if object 2 is 30 N.

b) Calculate the force that the ground exerts on object 1 if object 2 is 60 N.

c) Calculate the force that the ground exerts on object 1 if object 2 is 90 N.

**g (m _{1} – m_{2}) / (m_{1}) + m_{2} = a_{y}**

** I drew FBD’s for both of the weights and solved for the acceleration for situation a. I then used the equation w – t = ma and solved for the tension value, I then subtracted the tension value from the original weight of object 1, and I got 33.88 N.**

I feel like this is the wrong way of solving the problem because once you get to situation c, you would have a negative force which can’t be possible.

http://ift.tt/1voHqOZ