- #1
whataboutbob
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What do I do for these problems!?
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?
f=M*A
a=(Tangential speed)^6/r
Tangential speed=2pi r/time
Don't know how to get acceleration
Homework Statement
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?
Homework Equations
f=M*A
a=(Tangential speed)^6/r
Tangential speed=2pi r/time
The Attempt at a Solution
Don't know how to get acceleration
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