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प्रश्न
______ is used to change the speed of the car.
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उत्तर
Acceleration is used to change the speed of the car.
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संबंधित प्रश्न
Is the acceleration due to gravity of earth ‘g’ a constant ? Discuss.
The radius of planet A is half the radius of planet B. If the mass of A is MA, what must be the mass of B so that the value of g on B is half that of its value on A?
Write scientific reason.
The value of gravitational acceleration (g) decreases as we go above the Earth's surface.
The acceleration due to gravity on a planet is 1.96 m/s2. If it is safe to jump from a height of 3 m on tbe earth, the corresponding height on the planet will be ____________.
In the relation F = `"G M" "m"//"d"^2`, the quantity G
Suppose the gravity of the earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?
A central particle M is surrounded by a square array of other particles, separated by either distanced or distance d/2 along the perimeter o the square. The magnitude of the gravitational force on the central particle due to the other particles is ______.
The mass of a spaceship is 1000 kg. It is to be launched from the earth's surface out into free space. The value of g and R are 10 m/s2 and 6400 km, respectively. The required energy for this work will be ______.
When equating the gravitational force with Newton's Second Law force to derive g, which term cancels out?
The value of acceleration due to gravity at Earth’s surface is 9.8 ms−2. The altitude above its surface at which the acceleration due to gravity decreases to 4.9 ms−2, is close to ______.
(Radius of earth = 6.4 × 106 m)
