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Standard XII
Physics
Question

On account of the rotation of earth about its axis:

  1. the linear velocity of objects at equator is greater than that at other places
  2. the angular velocity of objects at equator is more than that of objects at poles
  3. the linear velocity of objects at all places on the earth is equal, but angular velocity is different
  4. the angular velocity and linear velocity are uniform at all places

A
the linear velocity of objects at equator is greater than that at other places
B
the angular velocity of objects at equator is more than that of objects at poles
C
the linear velocity of objects at all places on the earth is equal, but angular velocity is different
D
the angular velocity and linear velocity are uniform at all places
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Solution
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The correct option is A the linear velocity of objects at equator is greater than that at other places
the relation between linear velocity and angular velocity is V=rω where r is the distance of the particle from the axis
and ω is the angular velocityof the earth which will be same for all the particles
so linear velocity of objects at equator is greater than that at other places as r will be highest
so correct option isA

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