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?
- Its acceleration is constant and positive
- Its acceleration is constant and negative
- It is in a non uniform motion
- Its acceleration increases with time
Hint:
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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