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प्रश्न
What is the acceleration of free fall?
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उत्तर
- When objects fall towards the Earth under the effect of gravitational force alone, then they are said to be in free fall.
- The acceleration of free fall is 9.8 m s−2, which is constant for all objects (irrespective of their masses).
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संबंधित प्रश्न
A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate
- the maximum height to which it rises.
- the total time it takes to return to the surface of the earth.
A stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground.
During a free fall, will heavier objects accelerate more than lighter ones ?
What is the usual value of the acceleration due to gravity of earth ?
The value of acceleration due to gravity of earth :
A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate : The acceleration produced by the force
What force, in newton, your muscles need to apply to hold a mass of 5 kg in your hand? State the assumption.
The value of gravitational acceleration at the centre of earth is zero.
Write scientific reason.
The value of gravitational acceleration (g) is taken to be -g when studying the motion of an object thrown upwards in a straight line.
The mass and weight of an object on earth are 5 kg and 49 N respectively. What will be their values on the moon? Assume that the acceleration due to gravity on the moon is 1/6th of that on the earth.
