An egg is placed between 2 boxes of mass m and M (M > m). The 3 objects are in a straight line on a table top.
Scenario 1: A force is applied on the larger mass until the whole system starts to move.
Scenario 2: A force is applied on the smaller mass until the whole system starts to move.
Which scenario will the egg be more likely break? Explain.
Assume that the egg and table have negligible friction but the friction on the 2 boxes are not negligible. Friction, Fr >= kN, where k is the coefficient of static friction and N the normal contact force with the table top.