physics

A sports car accelerates from rest to 86km/h\, km/h in 5.2s\, s . What is its average acceleration in m/s2{\rm{m/s}}^2.

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1. V = 86km/h = 86000m/3600s = 23.89 m/s.

a=(V-Vo)/t = (23.89-0)/5.2 = 4.59 m/s^2

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posted by Henry

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