# Help finding applied force

1. Jul 30, 2014

### summerchambers

I am having trouble finding the applied force when i have the mass , maximum value of static friction and coefficient of static friction µ.

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2. Jul 30, 2014

### Staff: Mentor

Could you quote the exact question from your homework or prac work? So we can understand what this is about.

3. Jul 30, 2014

### summerchambers

There is none . I have to fill in the chart by preforming experiments

4. Jul 30, 2014

### summerchambers

can you please help

5. Jul 30, 2014

### Staff: Mentor

Where did the values in column E come from?

Did you measure the values in column D?

What is the equation this experiment is going to confirm?

6. Jul 31, 2014

### summerchambers

it has to deal with Forces and Friction

i did the mass with 6 trials , each different amount in the masses

and to get the coefficient i used Fmax to find the coefficient. so i put Fmax / Fpress which for trial 1 was 1/ 9.8 because Fpress=mg=9.8m

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7. Jul 31, 2014

### Staff: Mentor

I don't think you have correctly explained where those figures in column E came from. You seem to have invented them. I believe each should be a calculated value for μ based on the data to its left.

The numbers in column C will be, I think, those in column B but each multiplied by 9.8

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