A physics professor leaves her house and walks along the sidewalk towards campus. After `5 min`, it
Channel: Doubtnut
Date: 2020-07-26

A physics professor leaves her house and walks along the sidewalk towards campus. After `5 min`, it starts to tain and she terurns home. Her distance from her house as a function of time is shown in .  .  At which of the labeld points is her velocity  a. Zero   b. Constant and positive  c.  Constant and negative  d. Increasing in magnitude .