An object with a mass of #5 kg# is on a surface with a kinetic friction coefficient of # 3 #. How much force is necessary to accelerate the object horizontally at #6 m/s^2#?

1 Answer
Jun 18, 2018

Answer:

177 N

Explanation:

friction force is
#F_f= mu xx m xx g= 3 xx 5 kg xx 9,8 m/s^2= 147 N#
by the second dynamic principle
#F - F-f= m xx a #
F= 147 N + 5 kg xx 6 m/s^2= 177 N#