Advertisements
Advertisements
प्रश्न
What is the acceleration of free fall?
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).
APPEARS IN
संबंधित प्रश्न
A stone is released from the top of a tower of height 19.6 m. Calculate its final velocity just before touching the ground.
A ball thrown up vertically returns to the thrower after 6 s. Find
- the velocity with which it was thrown up,
- the maximum height it reaches, and
- its position after 4 s.
What do you understand by the term 'acceleration due to gravity of earth' ?
What would be the value of ‘g’ on the surface of the earth if its mass was twice and its radius half of what it is now?
Define the term acceleration due to gravity? Write its S.I. unit.
A body is projected vertically upward with an initial velocity u . If acceleartion due to gravity is g , the time for which it remains in air , is :
What is escape velocity?
Explain why:
Objects fall to the earth.
Write acceleration due to gravity value on the surface of Earth.
Write a short note.
Escape Velocity