You pull a big block (60 kg) at constant velocity along the dirt by pulling with a force of 200 N on a rope at an angle of 30 degrees. What is the coefficient of kinetic friction between the box and the ramp?
I know the answer is .35 but I'm not sure how to do it.

Question

anonymous · Answer

I have no idea,but awh you like Green Day,I love you.
Okay,irrelevant.
>__>

anonymous · Answer

okay, let's do this

anonymous · Answer

They should have given you acceleration , because there is some information missing

anonymous · Answer

It's constant velocity.

anonymous · Answer

I should learn to read

frictional force
-----------   = k
normal force

200 Sin 30=100
normal force= gravity -force applied in verticle direction
                       588 - 100=488

now for your block to not accelerate frictional force must be same as  applied force in horizonal componeent= 100 Sqrt[30]

100Sqrt[30]
----------  =0.354928
488