A train starts from rest and covers 200 ,m while accelerating uniformly to 20 ,m/s
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A train starts from rest and covers 200\,m while accelerating uniformly to 20\,m/s. It then travels another 100\,m at this constant speed and finally comes to rest with uniform retardation in 10\,s. The total time taken for the entire journey is
(a) 30s
(b) 35s
(c) 25s
(d) 40s