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guapka [62]
2 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]2 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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Answer:

Explanation:

The relation between time period of moon in the orbit around a planet can be given by the following relation .

T² = 4 π² R³ / GM

G is gravitational constant , M is mass of the planet , R is radius of the orbit and T is time period of the moon .

Substituting the values in the equation

(.3189 x 24 x 60 x 60 s)²  = 4 x 3.14² x ( 9380 x 10³)³ / (6.67 x 10⁻¹¹ x M)

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M = .06424  x 10²⁵

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<h3>What coloration are celebrity clusters?</h3>

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<h3>brainly.com/question/20326847</h3><h3 /><h3>#SPJ4</h3>
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