URGENT

Asked by  | 20th Jul, 2009, 09:32: AM

Expert Answer:

Av. velocity = (u + v )  / 2

so,  20 = ( u + 25 ) / 2

or,  u = 15 m/s

Also, v 2 - u2 = 2 as

so,    ( 25 ) 2 - (15 )2  = 2 ( a ) ( 100)

 or, a = 2 m/s2

Answered by  | 20th Jul, 2009, 12:42: PM

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