Earth suddenly shrinks so as to reduce its volume, mass remaining unchanged, what will be the effect on the duration of the day ? 13. A
Answers
If the earth is shrank reducing its volume but keeping its mass constant, the duration of the day would reduce. This is because the reduced volume would mean that a specific point on the earth’s radius would have to rotate back to its initial position faster due to the reduced circumference of the involved arc hence reducing the length of the day. The same point would have to cover a longer arc circumference when the earth’s mass and volume is normal hence the current length of the day
Answer:
If the Earth suddenly shrinks, mass remaining constant, the moment of inertia of the Earth will descrease, and consequently the angular speed of rotation ω about its axis will increase. Since period T∝1ω. The duration of the day T will decrease.
Explanation:
MARK AS BRAINLIST