Two boxes are seen to accelerate at the same rate when a force 3F is applied to the first and F is applied to the second. What is the mass ratio of the boxes?

f = ma solving for a the equation is: a = f/m so f/m for the first mass is: force/1stmass f/m for the second mass is: 1force/2ndmass these two are equal 1force/2ndmass =3 force/1stmass cross multiply: (1force)(1stmass) = (3force)(2ndmass) divide force on both sides: (1)(1stmass) = 6mass The second box is 6 times as massive.

6:1

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