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1. The problem statement, all variables and given/known data

1.A merry-go-round makes one complete revo-

lution in 12.2 s. A 49.4 kg child sits on the

horizontal floor of the merry-go-round 2.3 m

from the center.

Find the child’s acceleration. The accelera-

tion of gravity is 9.8 m/s2 .

Answer in units of m/s2

2.Find the horizontal force of friction that acts

on the child.

Answer in units of N

3.What minimum coefficient of static friction is

necessary to keep the child from slipping?

2. Relevant equations

f=M*A

a=(Tangential speed)^6/r

Tangential speed=2pi r/time

3. The attempt at a solution

Don't know how to get acceleration

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# What do I do for these problems ?

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