Question

Using a rope, a child pulls a box across a rough floor at a constant speed. The tension in the rope is 105 N and the rope makes an angle of 37 degrees with the horizontal. Find the friction force acting on the box (due to the rough floor).

Answers

bobpursley
the rope is pulling, and lifting ...

forcelifting=105sin37
force pulling=105cos37

forcepulling-frictionforce=ma=zero

the problem is too easy...friction force=pulling force.

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