A train goes forward at a speed of 1 m/s for 20 seconds. then it stops and goes backward at a speed of 0.5 m/s

Question

4 seconds. after both movements are completed, how far is the train located from its starting point. (notes: we are asking for the train's final location, not the distance that it traveled.)

A. 18m

B. 19m

C. 20m

D. 22m

Answer 1

What is the rate of deceleration and acceleration? How long is the train. the longer it is, the longer it will take to stop.

Question cannot be answered with the information given!

Answer 2

Simple math.  Are you asking because you can't figure it out? Answer is A.

Answer 3

A. 18

(1 X 20m) - (.5m X 4) = 18m from starting point

                                         22m total distance traveled

                                         24 seconds on a weird train ride

Answer 4

18m