Blocks with masses of 2 , 4 , and 5 are lined up in a row on a frictionless table.

Blocks with masses of 2 , 4 , and 5 are lined up in a row on a frictionless table. All three are pushed forward by a 50 force applied to the 2 blockA. How much force does the 4 block exert on the 5 block?B. How much force does the 4 block exert on the 2 block?