science
Grade-9
Easy

Question

The v-t graph of a moving body is a straight line with a non-zero slope. Which of the following cannot be true about the motion of the body?

  1. Its acceleration is constant and positive 
  2. Its acceleration is constant and negative 
  3. It is in a non uniform motion 
  4. Its acceleration increases with time 

hintHint:

Graphs of motion.

The correct answer is: Its acceleration increases with time


    • As the slope of the v-t graph is constant we can say the body is in uniform accelerated motion.
    • If the slope is postive Its is called acceleration but if its negative then it is called Retardation.

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