Advertisements
Advertisements
Question
What do you mean by free fall?
Solution
- The gravity of the Earth attracts every object towards its centre.
- When an object is released from a height, it falls towards the surface of the earth under the influence of gravitational force.
- The motion of the object is said to have free fall.
APPEARS IN
RELATED QUESTIONS
Gravitational force acts on all objects in proportion to their masses. Why then, a heavy object does not fall faster than a light object?
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.
State whether the following statement is true or false :
The acceleration due to gravity acting on a freely falling body is directly proportional to the mass of the body.
A force of 10 N acts on a body of mass 5 kg. Find the acceleration produced.
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 :
An object falling freely from rest reaches ground in 2 s. If acceleration due to gravity is 9.8 m s-2, then the velocity of object on reaching the ground will be
What is escape velocity?
In vacuum, all freely falling objects have the same force. Is it true?
The value of gravitational acceleration (g) is ________.
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.