An object travel 18 {m} in 4 {s} and then another 16 {m} in 2 {s}. What is the average speed of the object?

RRB Group D 15-Sep-2018 Shift 1 Solved Paper

Question : 14 of 100

Marks: +1, -0

An object travel

18 {m}

4 {s}

and then another 16

{m}

2 {s}

. What is the average speed of the object?

Solution:

\;\text " Average speed = Total Distance / Total time "\;

\;\text " Total distance "\;=18+16=36 {m}

\;\text " Total Time "\;=4+2=6 {s}

\;\text " Average speed "\;=36 \/ 6=5.67 {ms}^{-1}

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