Assuming the motion of Earth around the Sun as a circular o…

Physics Motion in a Plane Motion of a Vehicle, Centrifugal Force and Rotation of Earth MCQ (Single Correct)

Assuming the motion of Earth around the Sun as a circular orbit with a constant speed of 30 km/s.

The average velocity of the earth during a period of 1 year is zero

The average speed of the earth during a period of 1 year is zero.

The average acceleration during first 6 months of the year is zero

The instantaneous acceleration of the earth points towards the Sun.

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(a, d): During a period of 1 year displacement is equal to zero, so that average velocity is equal to zero.

During a period of one year distance travel is not equal to zero. So that average speed is not equal to

zero.

During a period of first 6 month of the year change in velocity not equal to zero. So that average

acceleration is not equal to zero.

In uniform circular motion instantaneous acceleration is act towards center of circular path.

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