Question

The coefficients of friction between a 2.0 kg block and a surface are μs = 0.50 and μk = 0.25. Assume the only other force acting on the block is that due to gravity. What is the magnitude of the frictional force (in newtons) on the block if the block is moving and the surface is inclined at 30o? Use g = 9.79 m/s2.

Answer 1

\[f=mg \mu _{k} \cos30\] ireach to0.74

Answer 2

Thank You sooo much.

Answer 3

sorry i take gequal to 9.71

Answer 4

your wellcome

Answer 5

is the answer 4.24 then?

Answer 6

yea it's right jean my calculator was in radian mode so i made mistake

Answer 7

ok..thank you soooo much