A car travels in a straight line at for and then at for

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

A car travels in a straight line at

20\,\text{m}\,\text{s}^{-1}

for

50\,\text{s}

and then at

10\,\text{m}\,\text{s}^{-1}

for

30\,\text{s}

, all in the same direction. Determine the car’s average velocity for the entire

80\,\text{s}

trip.

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