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two objects are thrown from the top of a tall building. one is thrown up, and the other is thrown down, both with the same initial speed. what are their speeds when they hit the street? neglect air resistance.



Answer :

The speed when they hit the street will be equal to each other.

A force applied to all bodies on Earth is Weight ( W ), which is caused by Earth's gravity. If a body is free falling, its only acceleration is g , gravity. So gravity increases velocity.

Both objects will show a change in their velocities because of gravity.

The velocity for both objects if one is thrown up and other is thrown down is same which is given by this formula:

= V = - √ (v² + 2gh)

Where,

Final velocity = V

Initial velocity = v

Acceleration due to gravity = g

Distance = h

Now, assuming the upward speed is measured as positive, the speed when the two objects hit the street will be equal to each other.

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