Physics

Problem

t=0

, particle P is at the origin, starts from rest, and experiences a constant acceleration of

3\text{ m/s}^2

along a straight line. Simultaneously, particle Q is

100\text{ m}

to the right of the origin and moves leftward with a constant velocity of

10\text{ m/s}

. At what time after

t=0

are the two particles at the same position? a)

t\approx 7.7\text{ s}

t\approx 5.5\text{ s}

t\approx 4.3\text{ s}

t\approx 12.2\text{ s}