two objects of mass M1 and M2 are dropped in vacuum from a height above the surface of earth M1>M2. Will there be any difference in the time in which the two respectively q reach the ground? give reasons for your answer
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6
Answer:
it reach the ground at the same time
Explanation:
because ther is no air friction
Answered by
8
No, there will not be any difference in the time in which the two objects respectively reach the ground.
- When an object is released from a height h, it is pulled downwards by the gravitational force due to the Earth.
- The acceleration due to gravity g is constant and is the same for all the objects irrespective of their masses. It is approximately equal to 9.8 m/s².
- Thus, when an object falls from a height, it moves under constant acceleration. Due to this, the equations of motion can be applied to the object.
- Using the 2nd equation of motion, h = ut + 0.5gt². Since u = 0 m/s
⇒ h = 0.5 gt²
or t =
- Hence proved that the time required by an object to reach the ground is independent of the object's mass and depends only on the distance through which it is falling.
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