A train moving at applies brakes and slows down uniformly to while covering on a…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A train moving at 20m s−1 applies brakes and slows down uniformly to 8m s−1 while covering 180m on a straight track.
(i) Compute the uniform acceleration (include its sign) during this interval.
(ii) Hence find the time taken by the train to reduce its speed from 20m s−1 to 8m s−1.