1.

A rope of length 10m and linear density 0.5kg/m is lying length wise on a smooth horizontal floor. It is pulled by a force of 25 N. The tension in the rope at a point 6m away from the point of application is

Answer»

20 N
15 N
10 N
5 N

Solution :`"Force on unit length" =(F)/(L),`
`"Force on l UNITS of length "=((F)/(L))l`
`"TENSION at "(L-l)" length "=(F)/(L)(L-l)`


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