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प्रश्न
Why does the velocity of a stone thrown vertically upwards decreases?
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उत्तर
Velocity of a stone thrown vertically upwards decrease because acceleration due to gravity is acting on downward direction.
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संबंधित प्रश्न
What is the value of gravitational constant G (i) on the earth, and (ii) on the moon ?
Fill in the following blank with suitable word :
The value of g on the earth is about………………. of that on the moon.
Is the acceleration due to gravity of earth ‘g’ a constant ? Discuss.
The value of gravitational acceleration (g) is ______ at the equator.
Right or wrong sentence:
The CGS unit of G is dyne.cm2/g2.
Right or wrong sentence:
The value of g is highest at the equator.
Write scientific reasons.
The value of acceleration g is greater at the pole than at the equator.
Write scientific reasons.
The value of g at the centre of the earth is zero.
The ratio of masses of two planets is 2:3 and the ratio of their radii is 4:7 Find the ratio of their accelerations due to gravity.
The mass of a body on the surface of the earth is 10 kg. The mass of the same body on the surface on the moon is `"g"_"m" = 1/6 "g"_"e"`, where gm, ge acceleration due to gravity on the surface of the moon and the earth respectively.
The acceleration due to gravity on moon is `(1/6)^"th"` times the acceleration due to gravity on earth. If the ratio of the density of earth 'ρe' to the density of moon 'ρm' is `5/3`, then the radius of moon 'Rm' in terms of the radius of earth 'Re' is ______.
On the earth, a stone is thrown from a height in a direction parallel to the earth’s surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why?
A mass attached to one end of a string crosses top-most point on a vertical circle with critical speed. Its centripetal acceleration when string becomes horizontal will be ______. (g = gravitational acceleration)
A body is thrown from the surface of the earth with velocity 'u' m/s. The maximum height in m above the surface of the earth upto which it will reach is ______.
(R = radius of earth, g = acceleration due to gravity)
If the Moon's mass is 1/80 of Earth's mass and its radius is 1/4 of Earth's radius, what is the ratio of g on the Moon to g on Earth?
Where on Earth is the value of acceleration due to gravity the highest?
Which formula correctly represents the acceleration due to gravity at Earth's surface?
