In a velocity time or any other vs time graph is it necessary,while mentioning an instant of time as 1s,2s,3s that it is from the starting point?Do I always have to say t=2s from the starting point?Is it wrong to only say "this event happened at t=2s"?
2 Answers
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When we say the velocity of the object at t=2sec is x m/s we mean from that point where the time t=0.
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I think t=2s is not a wrong thing. Most of the questions have like, this and this happened at t=2s