Advertisements
Advertisements
प्रश्न
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
पर्याय
`"F"/4`
`"F"/2`
F
2F
उत्तर
`"F"/4`
Explanation:
Let the masses of two objects be ml
and m2 placed at d distance apart.
so, F = `"G"("m"_1"m"_2)/"d"^2`
When the masses of two objects are halved,
`"F'" ="G"("m"_1/2. "m"_2/2)/"d"^2`
= `"G"("m"_1/2. "m"_2/2)/(4"d"^2)`
= `"F"/4`
APPEARS IN
संबंधित प्रश्न
Name the scientist who explained the motion of planets on the basis of gravitational force between the sun and planets.
State the SI unit of acceleration due to gravity.
The mass of the earth is 6 × 1024 kg. The distance between the earth and the sun is 1.5 × 1011 m. If the gravitational force between the two is 3.5 × 1022 N, what is the mass of the sun? 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 = ______
An object is thrown vertically upwards with a velocity u, the greatest height h to which it will rise before falling back is given by :
In the relation F = G ✕ M ✕ m/d2, the quantity G:
An apple falls from a tree because of gravitational attraction between the earth and the apple. If F1 is the magnitude of the force exerted by the earth on the apple and F2 is the magnitude of the force exerted by the apple on earth, then
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.
The earth is acted upon by the gravitation of the Sun, even though it does not fall into the Sun. Why?
Give scientific reasons.
Any object on earth falls vertically downward and not at an angle to the vertical; nor fly off in a horizontal direction.
