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## Homework Statement

A 2.0kg block of wood accelerates from rest down a smooth incline at 37

^{o}to the horizontal. It covers 1.26m in 1.0sec. Determine the frictional force acting.

## Homework Equations

uhhh... this is the problem, I don't know what equation to use...

## The Attempt at a Solution

can someone please help me?