A scooter’s velocity decreases uniformly from to in

PHYSICS · Single correct · CBSE · Physics · Motion · Motion

Problem

A scooter’s velocity decreases uniformly from 20 m/s20\,\text{m/s} to 12 m/s12\,\text{m/s} in 4 s4\,\text{s}. Which one of the following is the acceleration of the scooter? (a) +4 m/s2+4\,\text{m/s}^2 (b) +2 m/s2+2\,\text{m/s}^2 (c) −2 m/s2-2\,\text{m/s}^2 (d) −1 m/s2-1\,\text{m/s}^2

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