Force Analysis with Friction · PhysicsBowl 2007 #21
Physics · mechanics
Problem
A box slides to the right across a horizontal floor. A person called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the right, rank the sizes of these three forces exerted on the box.
(a) f < M < T
(b) M < f < T
(c) M < T < f
(d) f = M < T
(e) It cannot be determined.