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Home  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Units and Measurement

A man runs 100.5 m in 10.3 seconds. What is his average speed up to approximate significant figures?

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1 Answer

The average speed is $\large\frac{100.5}{10.3} $$\approx 9.708737 ms^{-1}$
However, distance has 4 significant figures but the time has only 3. Therefore the result rounded off to 3 digits is $9.71 \;ms^{-1}$
answered Jul 12, 2014 by balaji.thirumalai
 

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