AP Physics 1· difficulty 4/5
The graph shows velocity (m/s) vs. time (s): the object accelerates from 0 to 20 m/s in 4 s, holds steady until 12 s, then decelerates to 0 at 16 s. What total distance does it travel?
200 m
320 m
160 m
240 m
Explanation
Distance equals the area under the v-t curve. The shape is a trapezoid with the two parallel sides being the top (8 s of cruise from 4 to 12 s) and the bottom (the full 16 s baseline), at height 20 m/s. Area m.
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