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guapka [62]
3 years ago
10

The default unit of rotational speed is 'radians per second' or 'rad/s'. If a someone sits at the edge of a 5m radius carousel a

nd has tangential speed of 2 m/s, what is the rotational speed in rad/s?
A. 2.5
B. 3
C. 7
D. 10
Physics
1 answer:
Blizzard [7]3 years ago
7 0

The rotational speed of the person is 0.4 rad/s.

<h3>Rotational speed (rad/s)</h3>

The rotational speed of the person in radian per second is calculated as follows;

v = ωr

where;

  • v is linear speed in m/s
  • r is radius in meters
  • ω is speed in rad/s

ω = v/r

ω = 2/5

ω = 0.4 rad/s

Thus, the rotational speed of the person is 0.4 rad/s.

Learn more about rotational speed here: brainly.com/question/6860269

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A radium atom has 88 protons and 226 neutrons. How many electrons does it have?
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Answer:

No. of electrons = 88

Explanation:

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4 years ago
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This question is incomplete

Explanation:

The completed question is in the attachment to this question

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