Here's the question you clicked on:
maz123
PLEASE someone help me with this one question!!!!!!!???? :(---->:)
f = [ (u)(m)(g) ] / [ cos(x) - (u)*sin(x) ]
Given : Angle ( θ ) = 21o Mass ( m ) = 23 kg Static friction μs = 0.56 g = 9.8 m/s2 μs = F /N F = μs N where N = m g(cosθ + µ sinθ) F = μs mg(cosθ + µ sinθ) =------ N
That is a similar problem I found. Put in your data and see if it works.
even though it says kinetic friction and not static friction?
I don't know. Try it and see. Why don't you google the problem. You could probably find the exact problem.
i did! and each time i try different ways and i get different answers from all the different ways. ive tried 4 times only have 3 chances left :/
First, it should read "19 deg ABOVE the horizontal."
Can you calculate the force of kinetic friction, and tell in which direction the force of friction is applied?