- #1

robax25

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## Homework Statement

The canister of a juicer has 333 grams of pulp distributed over its inside wall at an average radius of 8

**.**00cm

**.**It starts from rest and reaches its maximum angular speed of 3600

**.**0 rpm in 4

**.**00 seconds

**.**For the pulp, determine ( f ) the tangential and centripetal

**force**on it at t = 2

**.**00s and t = 4

**.**00s

**. my question why tangential force is constant and centripetal force is varying?**

## Homework Equations

tangential force F=ma =m

**∝ r**

centripetal force= mv²/r

3. The Attempt at a Solution

Ft = Mat ; ( Ft )1 = ( 0

Fc = Mac ; ( Fc )1 = ( 0

( Fc )2 = ( 0

centripetal force= mv²/r

3. The Attempt at a Solution

Ft = Mat ; ( Ft )1 = ( 0

**.**333 kg )( 7**.**54 m/s2 ) = 2.51 N ; ( Ft )2 = 2.51 N (Constant tangential force)Fc = Mac ; ( Fc )1 = ( 0

**.**333 kg )( 2850 m/s2) = 949 N( Fc )2 = ( 0

**.**333 kg )( 11400 m/s2) = 3800 N ( Variable centripetal force)