Gravitation Test

Result

Gravitation Test - 4

Score
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Rank
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Weekly Quiz Competition

Question 1
1 / -0

A satellite moves in an elliptical orbit about a planet maximum and minimum velocities are 3 x 10⁴ m/s and 1 x 10³ m/s. What is the minimum distance of satellite from planet if maximum distance is 4 x 10⁴ km?

A
4 x 10³ km

B
3 x 10³ km

C
4/3 x 10³ km

D
1 x 10³ km
Question 2
1 / -0

If the Earth stops rotating, the value of g at the equator will

A
increase

B
decrease

C
remain constant

D
Cannot be predicted

Solution

At the equator, the value of acceleration due to gravity is g' = g - ω²R.
If the Earth stops rotating, ω = 0, g' = g
So, the value of acceleration due to gravity will increase.