Homework Help: physics

Posted by Hannah on Sunday, September 25, 2011 at 3:30pm.

Two particles are at the same point at the same time, moving in the same direction. Par- ticle A has an initial velocity of 9 m/s and an acceleration of 2.7 m/s2. Particle B has an initial velocity of 2.9 m/s and an acceleration of 4.2 m/s2.
At what time will B pass A? Answer in units of s

physics - bobpursley, Sunday, September 25, 2011 at 4:02pm
the distance traveled will be identical.

distanceA=9t+1/2 *2.7 t^2
distanceB=2.9t+ 1/2 * 4.2 t^2

set them equal and solve for time t.

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