Asked by minas

When a man throws a ball vertically up his watch fall down from his hand.if the initial speep of the ball is 20m/s from a building.what will be its velocity when it reaches the ground if the height difference b/n them is 100m?
Answered by drwls
Someone will be glad to critique your thoughts.
Try using conservation of energy.

The business of his watch falling from his hand seems irrelevant. What does b/n mean?

Please work on your spelling, grammar and punctuation if you post here again.
Answered by minas
tnx 4 ur coment but i post wat i had received frm ma frds.i was glad when i hear that 2 that's y i post it here.
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