Question

27. Which of the following speed-time (v - t) graphs is
physically not possible?
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Answer 1

1 and 2 are not possible i guess bcoz if u observe carefully in them there are more than 1 velocity at a specific point of time which is impossible as no body can have 2 or velocities at a given instant....only 3 is possible

Answer 2

Answer:Option : 4

Explanation:

Option : 1 is not possible because time is going backwards in this graph

Option : 2 is not possible because there is a curve coming in the time . So this graph is also not possible

Option : 3 is not possible because time can never be in negative .

So the option 4 is the answer = ALL OF THE ABOVE