(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.800 m at the rate of 6.00 rev/s. If he increased the length to 1.100 m, he could revolve the sling only 4.00 times per second.

(a) What is the speed of the stone for each rate of rotation?

at 6.00 rev/s

at 4.00 rev/s

(b) What is the centripetal acceleration of the stone at 6.00 rev/s?

(c) What is the centripetal acceleration at 4.00 rev/s?

2. Relevant equations

a = v^2/r

T = 2(pi)r/v

3. The attempt at a solution

a = (6.00 rev/s)^2/.800 m = 45m/s^2

im not sure if im even doing this rite..how do i get the speed?

do i have to convert rev/s to anythin?

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# Homework Help: Centripetal acceleration question

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