Physics

Physics

Problem

A car travels 150 m150\,\text{m} towards north in 10 s10\,\text{s}. Calculate its average velocity. a) 30 m/s30\,\text{m/s} north b) 15 m/s15\,\text{m/s} north c) 0.15 m/s0.15\,\text{m/s} north d) 15 m/s15\,\text{m/s} south
Intuitive explanation

Average velocity measures how fast and in which direction an object's position changes overall—it's displacement divided by time, not just speed. Since the car moves 150 m north in a straight line, you have both the magnitude and direction already; just divide to find the rate of change in that direction.

Intuitive explanation

Average velocity measures how fast and in which direction an object's position changes overall—it's displacement divided by time, not just speed. Since the car moves 150 m north in a straight line, you have both the magnitude and direction already; just divide to find the rate of change in that direction.

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