a 20kg Block rests on a ramp incline 30 degrees upward from the horizontal. the surface of the ramp has coefficients of friction Us=.15 Uk=.11 someone attempts to pull the block up the rapm with a 150N paralell to the incline. Does the block move? if yes what is the acceleration?

Question

jusaquikie · Answer

I know it moves and that the answer is supposed to be a=1.661 m/s^2 but i get 6.96 m/s^2

nevermind i figured it out. i was not subtracting mgcos(30) from my FT