The speed of a scooter increases uniformly from to in

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

The speed of a scooter increases uniformly from 20 km h−120\,\text{km\,h}^{-1} to 68 km h−168\,\text{km\,h}^{-1} in 6 s6\,\text{s}. Its average acceleration in m s−2\text{m\,s}^{-2} is (a) 4.804.80 (b) 8.008.00 (c) 2.222.22 (d) 1.331.33

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