- #1

Prashant91

- 12

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## Homework Statement

: A centrifuge starts from rest and speeds up at 3400rpm after 50 seconds.a sample is at a distance of 37.5mm from the centre

1) find the angular acceleration

2) calculate the centripetal acceleration [/B]

## Homework Equations

:v2 / r

v = rω

a = rω2

a=Λω/Λt

3. The Attempt at a Solution

1)

**a=Λω/Λt = 3400/60*2∏/50 = 7.12 rad/sec^2**

2) a[/B]

2) a

_{c}=v^2/ r = 7.12/ 0.01875 ( 0.01875 is the radius converted to M)