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# Two particles A and B move to the right along a horizontal line. They start at a point a, s meters is the directed distance of the particle from 0 to...

Two particles A and B move to the right along a horizontal line. They start at a point a, s meters is the directed distance of the particle from 0 to t seconds, and the equation of motion are: s= 4t^2 +5t (for particle A) and s= 7t^2 +3t (for particle B) If t=0 at the start, for what values of t will the velocity of the particle A exceed the velocity of particle B.