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CBSE Class 9 Answered

URGENT
Asked by | 20 Jul, 2009, 09:33: AM
answered-by-expert Expert Answer

From the relation , s = ut + at2 / 2

For , distance travelled in 1 s

3 = u (1) + a ( 1 ) 2 / 2

or, 6 = 2 u + a..................................(i)

For, distance travelled in 2 s ;

8 = u ( 2 ) + a ( 2)2 / 2

or, 4 = u + a ......................................(ii)

Solving ( i ) and (ii) , we get

u = 2 m/s and a = 2 m /s2

 

 

 

 

 

 

 

 

 

 

 

Answered by | 20 Jul, 2009, 01:54: PM

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