Question

if acceleration (a) =5m/s^2,distance (s) =8.4m , final velocity (v) = 10, find initial velocity (u) =?​

Answer 1

Answer:

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Answer 2

Answer:

We know that v^2=u^2+2as

10×10=u^2+2×5×8.4

100=u^2+84

100-84=u^2

16=u^2

√16=u

4m/s=u

Hence initial velocity is 4m/s.