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CBSE Class 9 Answered

A child drops a ball from a height of 10m. Assume that its velocity increases uniformly at the rate of 10m/s2. Find the velocity with which 1-velocity with which the ball strikes the ground. 2-Time taken by the ball to reach the ground
Asked by Lakshay Sharma | 21 Apr, 2012, 08:20: PM
answered-by-expert Expert Answer
Use v2=u2+2as
 
v2=0+2 * 10* 10
 
v= 10 ?2 m/s
 
Then use V=u+at
 
10?2=0+10* t
 
t= ?2 sec.
Answered by | 21 Apr, 2012, 10:59: PM

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