Solution to Equilibrium Example

"Pepi & the Cake"

We need to find the maximum mass that the string can handle before either the string breaks or the cake starts to slide along the table top.

There are three free body diagrams to consider.


Cake  Fs                            Tc                               Fs = Force on the String
                                                              Tc = Tension in the string due to the cake
                                                              Tc   =  Fs


FBD2:                                                               Th            =0. 6

Tc                                     300


Th = Tension in the string from the refrigerator handle
Tm = Tension in the string due to mouse's weight
Tc = Tension in the string due to the cake


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