# Force Diagams need help

*label*Physics

*timer*Asked: Feb 15th, 2015

**Question description**

A 46 kg block slides along the top of a 170 kg
block with an acceleration of 5 m/s
2 while a
horizontal force of 344 N is applied. There
is no friction between the 170 kg block and
a horizontal frictionless surface, but there is
friction between the two blocks.
The acceleration of gravity is 9.81 m/s^2.

Find the coefficient of kinetic friction between
the blocks.

Find the acceleration of the 170 kg block during
the time that the 46 kg block remains in
contact.
Answer in units of m/s
2
.