The position of an object moving along x-axis is given by x=a+bt^(2) where a=8.5m, b=2.5ms^(-2) and t is measured in seconds. Then which of the following is true?

The position of an object moving along x-axis is given by x=a+bt^(2) w

1.	The position of an object moving along x-axis is given by x=a+bt^(2) where a=8.5m, b=2.5ms^(-2) and t is measured in seconds. Then which of the following is true?
Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/velocity-1444512" style="font-weight:bold;" target="_blank" title="Click to know more about VELOCITY">VELOCITY</a> at `t=2` <a href="https://interviewquestions.tuteehub.com/tag/sec-1197209" style="font-weight:bold;" target="_blank" title="Click to know more about SEC">SEC</a> is zero<br/>average velocity between `t=2, t=4` sec is `15m//s`<br/>velocity at `t=4` sec is `10m//s`<br/>all the above are true</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html>