dynamic
posted by Adel .
A particle moves along a straight line with an acceleration of m/s2, where s is in meters. Determine the particle’s velocity when s = 2m, if it start from rest when s = 1m.

How much is the acceleration? Not stated in the problem!
anyway, you can use the formula:
V^2 = U^2 + 2*a*s
here a = accleration, U=0 and s = 21= 1m
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