A body is bound to move along a straight line, say X-axis.It is initially at rest at origin.It moves to point (1m,0) in one second and comes to rest. How can we prove that absolute value of acceleration of this particle exceeds 4ms*2 atleast once?

  • 1
    $\begingroup$ Do you mean it accelerates then decelerates and stops at 1? $\endgroup$
    – Abu Bakr
    Commented Sep 3, 2017 at 15:10
  • $\begingroup$ This might be more suited to Physics.SE, but make sure to read through their guides to make sure your question is well-received. $\endgroup$
    – Mr. Xcoder
    Commented Sep 3, 2017 at 15:10
  • $\begingroup$ Your acceleration limit is lacking a unit. $\endgroup$
    – Wrzlprmft
    Commented Sep 3, 2017 at 15:37

1 Answer 1



  • Consider a scenario in which the body moves as quickly as possible given the acceleration threshold.
  • Does the body reach its goal within the given time?
  • Can any body with less acceleration be faster?

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