Identify the correct expression for the average velocity of a particle that moves…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Identify the correct expression for the average velocity vˉ\bar v of a particle that moves from position x1x_1 at time t1t_1 to position x2x_2 at time t2t_2. (a) vˉ=∣x2−x1∣t2−t1\bar v = \dfrac{|x_2 - x_1|}{t_2 - t_1} (b) vˉ=x2−x1t2+t1\bar v = \dfrac{x_2 - x_1}{t_2 + t_1} (c) vˉ=x2−x1t2−t1\bar v = \dfrac{x_2 - x_1}{t_2 - t_1} (d) vˉ=x2+x1t2−t1\bar v = \dfrac{x_2 + x_1}{t_2 - t_1}

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