`what is the pebble's speed?`

# what is the pebble's speed?

what is the pebble's speed?

### Where am I?

In answerQA you can ask and answer questions and share your experience with others!

Skip to main content#

### Where am I?

#### Related Discussions

what is the pebble's speed?

`what is the pebble's speed?`

In answerQA you can ask and answer questions and share your experience with others!

Angular speed: 3 rev

Diameter (d) : 62 cm

Convert angular speed to radians.

3 x 2π = 18.84 rad/s

convert units cm to m.

radius (r) = d/2

d=62

d= 62/100

d=.62

r= .62/2

r= .31 m

Tangential speed, v = rω

v= (.31) x 18.84

v= 5.84 m/s

2) What is the pebble’s acceleration?

Equation for radial acceleration:

ac= v2/r

(5.84)2/.31 m=

ac=110.03 m/s2