- #1

Her0

- 5

- 2

## Homework Statement

In a lab assignment we created a Fletcher's trolley system and were asked to calculate the normal force, the force of friction, and then create a graph of both to find the coefficient of kinetic friction.

So far, the variables I have are:

Hanging mass: 0.100 kg

Sliding mass: 0.1553 kg

Distance traveled by the sliding mass: 0.398 m

Time taken for the sliding mass to reach the ground: 0.89 s

Acceleration of the system: 1.01 m/s^2

Normal force: 1.52 N

Force of friction : Unknown

## Homework Equations

The acceleration of the system was found using the equation a=(2(d-vit))/t^2 which i simplified to a=2d/t^2 since vi was 0 m/s.

The normal force of the sliding object was found using Fn = mg

The force of friction would be calculated using Ffk = Fn*μk but I don't have μk.

## The Attempt at a Solution

As stated above, I tried using Ffk = Fn*μk but i didn't have all the variables.