Question

A train starting from rest accelerates uniformly for 100 s,
then comes to a stop with a uniform retardation in the
next 200 s. During the motion, it covers a distance of
3 km. Choose the wrong option
(1) Its acceleration is 0.2 m/s
(2) Its retardation is 0.1 m/s2
(3) The maximum velocity is 20 m/s
(4) The maximum velocity is 10 m/s​

Answer 1

Answer:

A train starting from rest accelerates uniformly for 100 s,

then comes to a stop with a uniform retardation in the

next 200 s. During the motion, it covers a distance of

3 km. Choose the wrong option

(1) Its acceleration is 0.2 m/s

(2) Its retardation is 0.1 m/s2

(3) The maximum velocity is 20 m/s

(4) The maximum velocity is 10 m/s