Question

Three children are riding on the edge of a merry-go-round that is 142 kg, has a 1.60 m radius, and is spinning at 19.3 rpm. The children have masses of 22.4, 30.5, and 34.8 kg. If the child who has a mass of 34.8 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm?

Answer #1

Three children are riding on the edge of a merry-go-round that
is 142 kg, has a 1.60 m radius, and is spinning at 17.3 rpm. The
children have masses of 22.4, 29.0, and 38.8 kg. If the child who
has a mass of 38.8 kg moves to the center of the merry-go-round,
what is the new angular velocity in rpm?

Three children are riding on the edge of a merry-go-round that
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children have masses of 22.0, 28.0, and 33.0 kg. If the child who
has a mass of 28.0 kg moves to the center of the merry-go-round,
what is the new angular velocity in rpm? Ignore friction, and
assume that the merry-go-round can be treated as a solid disk and
the children as points.

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is 105 kg, has a 1.70-m radius, and is spinning at 24.0 rpm. The
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has a mass of 28.0 kg moves to the center of the merry-go-round,
what is the new angular velocity in rpm? Ignore friction, and
assume that the merry-go-round can be treated as a solid disk and
the children as points.

Three children are riding on the
edge of a merry-go-round that is a disk of mass 92 kg, radius 1.4
m, and is spinning at 23 rpm. The children have masses of 24 kg,
28.4 kg, and 34.2 kg.
Randomized VariablesM = 92 kg
m1 = 24 kg
m2 = 28.4 kg
m3 = 34.2 kg
r = 1.4 m
f = 23 rpm
If
the child who has a mass of 28.4 kg moves to the center of the...

Three children are riding on the edge of a merry-go-round that
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merry-go-round is initially spinning at 5.84 revolutions/minute.
The children have masses of 29.0 kg, 28.2 kg and 33.6 kg. If the
child who has a mass of 28.2 kg moves to the center of the
merry-go-round, what is the new angular velocity in
revolutions/minute?

10 kids are riding on a merry-go-round. The merry-go-round has a
radius of 3 m and a mass of 2000 kg, and it is spinning with an
angular velocity of 2 rad/s. The kids are riding at the rim of the
merry-go-round, and they each have a mass of 30 kg. All of the kids
jump radially off the merry-go-round, all at the same time. What
would the angular velocity of the merry-go-round be after the kids
jump off?

10 kids are riding on a merry-go-round. The merry-go-round has a
radius of 3 m and a mass of 2000 kg, and it is spinning with an
angular velocity of 2 rad/s. The kids are riding at the rim of the
merry-go-round, and they each have a mass of 30 kg. All of the kids
jump radially off the merry-go-round, all at the same time. What
would the angular velocity of the merry-go-round be after the kids
jump off?

10 kids are riding on a merry-go-round. The merry-go-round has a
radius of 3 m and a mass of 2000 kg, and it is spinning with an
angular velocity of 2 rad/s. The kids are riding at the rim of the
merry-go-round, and they each have a mass of 30 kg. All of the kids
jump radially off the merry-go-round, all at the same time. What
would the angular velocity of the merry-go-round be after the kids
jump off? Group...

A 24.5-kg child is standing on the outer edge of a horizontal
merry-go-round that has a moment of inertia of about a vertical
axis through its center and a radius of 2.40 m. The entire system
(including the child) is initially rotating at 0.180 rev/s. Find
the angular velocity if the child moves to a new position 1.10 m
from the center of the merry-go-round... Please explain!!

. In a park, four children are riding on a merry-go-round with a
radius of 2.2 m and a mass of 300 kg. The children have an average
mass of 45 kg each, and they are initially each standing 2.0 m from
the center of the merry-go-round. The merry-go-round is rotating at
a speed of 0.25 revolutions per second. The children then move
inwards towards the center of the merry-go-round, so they are
standing 0.5 m from the center. What...

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