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## Homework Statement

Determine the coefficient of friction for a surface when the mass of an object is 300g and the angle of incline when the object starts to move is 29°

Distance travelled and acceleration are not provided

## Homework Equations

W = mg

F

_{fric}= μN

N = mg cos(θ)

μN = mg sin(θ)

## The Attempt at a Solution

I started by drawing a free-body diagram and identified the lines of frictional force, normal reaction force and gravity.

I then calculated the weight:

W = mg

= 0.300 x 9.81 m s

^{-2}

= 2.94 N

Not sure on the frictional force as μ is not known

N = mg cos(θ)

= 2.94 N x cos(29)

= 2.57 N

This is where I get stuck as my experience in maths and science is fairly basic.

Could someone please talk me through things a bit please?

Thank you.