A body of mass 25 kg is at rest on a hor...

A body of mass 25 kg is at rest on a horizontal surface. Minimum horizontal force required to just start the motion is 73.5 N and a force of 49 N is needed to keep the body moving with a constant velocity. What is the coefficient of static friction?

`0.2`

`0.3`

`0.4`

`0.5`

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