A scooter slows down uniformly from to while travelling

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

Problem

A scooter slows down uniformly from 25 m/s25\,\text{m/s} to 15 m/s15\,\text{m/s} while travelling 80 m80\,\text{m}. Determine its acceleration. (a) −2.0 m/s2-2.0\,\text{m/s}^2 (b) −5.0 m/s2-5.0\,\text{m/s}^2 (c) −2.5 m/s2-2.5\,\text{m/s}^2 (d) +2.5 m/s2+2.5\,\text{m/s}^2

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