if we drop a ball into very deep hole in earth then hoe to find the final velocity of the ball just before touching the bottom ?

Asked by  | 27th Dec, 2012, 10:59: AM

Expert Answer:

You can find the depth of the hole and also can note the time taken by the ball to reach the bottom.
And the initial velocity will be taken 0.
With these informations you have to find the final velocity by indirect method ie calculation.
Here, if the hole is very deep then you have to consider the acceleration not as constant but changing with height and then with the help of calculus you have to find the final velocity.
on integrating you can find the final velocity.

Answered by  | 3rd Jan, 2013, 01:02: PM

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