If an object with a mass of #10 kg # is moving on a surface at #3m/s# and slows to a halt after # 4 s#, what is the friction coefficient of the surface?

1 Answer
Mar 5, 2016

Answer:

#u_k~=0,076#

Explanation:

#v_l=v_i-a t#
#0=3-4 a" "a=3/4 m/s^2#
#F_f=m a#
#u_k cancel(m) g=cancel(m) a#
#u_k *9,81=3/4#
#u_k~=0,076#