A man is pulls a 30kg box at a constant speed across the floor.If the friction force of the floor on the ground is 130 N what is the tension force in the rope he uses to pull the box ? what is the normal force of the floor on the box ?

Question

anonymous · Answer

The normal force is the same as the gravitational force, just in opposite directions. Are you familiar with the equation $$Fnet=ma$$

shamim · Answer

Here acceleration a=0
Because its constant velocity

shamim · Answer

Use
F=ma
F=m*0
F=0

shamim · Answer

F=net force

shamim · Answer

So tension is equal nd oposit with130N
Right?

shamim · Answer

Tension=?