Where must a `800 N` weight be hung on a uniform horizontal `100 N` pole of length `L` so that a body at one end supports one-third as much as a man at the other end ?

Two men support a uniform horizontal beam at its two ends, if one of them suddenly lets go, the force exerted by the beam on the other man will

Two men support a uniform horizontal beam at its two ends, if one of them suddenly lets go, the force exerted by the beam on the other man will

A man of mass m is standing at one end of a trolley of mass M and length L placed at rest on a smooth horizontal surface. The man starts moving towards the other end and covers distance L, then distance moved by man w.r.t ground is