Respuesta :

Answer:

Data:-vi=0 ,vf=4m/s ,s=20m ,a=?

Explanation:

Solution according to 3rd eq of motion 2as=vf²-vi² here we have to find a so a=vf²-vi²/2s ,a=(4²) -(0)²/2×20 ,a=16/40 ,a=0.4m/sec²

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