An object with a mass of #12 kg# is on a surface with a kinetic friction coefficient of # 2 #. How much force is necessary to accelerate the object horizontally at # 17 m/s^2#?

1 Answer
Apr 8, 2017

Answer:

439.2 #N#

Explanation:

M=12 Kg
k=2 units
a =17 #ms^(-2)#

#F_(Kf)=2*12*9.8 N#
#=>#235.2 N

But we know ,

#F_(Net)=F_(applied)-F_(Kf)#

#M*A_(Net)+F_(Kf)=F_(Applied)#
#=>#439.2 N