A particle moves along a line with x, v, and a representing position, velocity, and acceleration, respectively. Assuming that the acceleration a is constant, use equation (3.15) to show that
where x0 and v0 are the position and velocity of the particle at time t = 0, respectively. A car’s speed is reduced from 60mi/h to 30mi/h in a span covering 500 ft. Calculate the magnitude and direction of the constant deceleration.
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