Question

A train is moving towards east with a velocity of 72kmph.its velocity is changed to 90 kmph towards west.find the change in velocity of the train and explain your answer.
options: a) -20m/s E b) -25m/s due E c) 20m/s due E d)-

45m/s due E?

Answer 1

Answer:

Thanks for free points

Answer 2

Answer:

answer is opt b

Explanation:

hope it helps