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CBSE Class 9 Answered

a stone is dropped from a height 19.6m. find time taken by it to reach the ground
Asked by | 12 May, 2008, 06:34: PM
Expert Answer

To calculate this we can use the formula

s=ut + gt2/2

s=19.6

u=0 (intial velocity)

t=time taken 

g= 9.8m/sec2

put the values in the above equation you will get the time taken which is 2sec.

Answered by | 23 May, 2008, 09:36: PM
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