First slide

Position Path Length (Distance) And Displacement

Question

A motorist drives north for 35.0 minutes at 85.0 km/h and then stops for 15.0 minutes. He next continues north, travelling 130 km in 2.00 hours. What is his total displacement

Very Easy

A

85 km
B

179.6 km
C

20 km
D

140 km

Solution

$S = v_{1} t_{1} + v_{2} t_{2} + v_{3} t_{3}$
$85 \times \frac{35}{60} + 0 +$ 130=179.6 Km

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