- Thread starter
- #1

Find the size of the frictional force.

Iam getting the ans by using the formula F= coefficient of friction ×R

5.62N but the textbook ans is 3.58N.

Pls help

- Thread starter Shah 72
- Start date

- Thread starter
- #1

Find the size of the frictional force.

Iam getting the ans by using the formula F= coefficient of friction ×R

5.62N but the textbook ans is 3.58N.

Pls help

- Mar 1, 2012

- 935

$f = \mu \cdot mg\cos{\theta} = 5.62 \, N$

an aside ... since you're using a calculator anyway, why not use 9.8 for g? g = 10 is normally used when calculations are done by hand.

- Thread starter
- #3

Thank you!

$f = \mu \cdot mg\cos{\theta} = 5.62 \, N$

an aside ... since you're using a calculator anyway, why not use 9.8 for g? g = 10 is normally used when calculations are done by hand.