An object travels 16 m in 4 s and then another 16 m in 2 s. What is the average speed of the object?

(16/3) m/s

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(15/3) m/s

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16 m/s

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15 m/s

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Solution

The correct option is B :(16/3) m/s
Total distance travelled = 16 m + 16 m = 32 m

Total time taken = 4 s + 2 s = 6 s

Average speed = $\frac{T o t a l D i s t a n c e}{T o t a l T i m e}$ = $\frac{32 m}{6 s}$ = $\frac{16}{3}$ m/s

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