a ball is thrown vertically upwards with a velocity of 20m/s frm the top of a tower of height 25m frm the ground.How long doesit remain in air?

Asked by Amitha N | 30th Jan, 2011, 12:00: AM

Expert Answer:

Dear student,
 
 
Time of flight = 2u/g = 40/10 = 4 sec.
 
+
 
time the ball takes to coer 25m = 2.2 sec
Total time = 6.2 sec.
 
 
 
Hope this helps.
Thanking you
Team
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Answered by  | 31st Jan, 2011, 02:54: PM

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