Question

A uniform bar of length 4.0 m and mass 9 kg is held by a rope on both ends. A 68.7 kg painter stands 1.5 m from the left end of the bar. Calculate the force exerted by the rope on the left end.

Answer 1

The above problem is solved in the attached image

(Note- momentum at any point is equal to the force *perpendicular distance from that point)

Distance to tha force