Advertisements
Advertisements
Question
Identical packets are dropped from two aeroplanes, one above the equator and the other above the north pole, both at height h. Assuming all conditions are identical, will those packets take some time to reach the surface of the earth. Justify your answer.
Solution
The value of acceleration due to gravity is greater at the poles than at the equator. So, the packet dropped at the north pole from a height h, will accelerate more than the packet dropped at the equator from the same height and hence will reach the surface of the earth earlier.
APPEARS IN
RELATED QUESTIONS
Name the scientist who gave the three laws of planetary motion.
What type of force is involved in the formation of tides in the sea ?
What happens to the gravitational force between two objects when the distance between them is :
(1) doubled ?
(2) halved ?
The masses of the earth and moon are 6 × 1024 kg and 7.4 × 1022 kg, respectively. The distance between them is 3.8 × 105 km. Calculate the gravitational force of attraction between the two?
Use G = 6.7 × 10–11 N m2 kg–2
Write proper answer in the box:
If `"F" = ("G""m"_1"m"_2)/"d"^2` then F = ______
Describe how the gravitational force between two objects depends on the distance between them.
The gravitational force of attraction between two objects is x. Keeping the masses of the objects unchanged, if the distance between the objects is halved, then the magnitude of gravitational force between them will become :
A _______ is necessary to change the speed as well as the direction of motion of an object.
The gravitational force between two objects is F. If masses of both objects are halved without changing distance between them, then the gravitational force would become
Two particles are placed at some distance. If the mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be
