- #1

Krushnaraj Pandya

Gold Member

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## Homework Statement

A uniform bar of mass m is being moved on a smooth horizontal plane by applying a constant horizontal force F acting at the lowest point. If the rod translates making a constant angle 'theta' with vertical, the value of F must be?

## Homework Equations

1) F=ma

2) Torque=Moment of Inertia X Angular acceleration

## The Attempt at a Solution

I tried to equate net torque about center of rod and lowest point of rod to zero but can't figure out how to do so in either configuration, I figured the torque of the force about the center is F(L/2)cos(theta) assuming length of rod as L, I don't know how to proceed or how this will give us the value of F in terms of m, g and theta