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A boy walks to his school at a distance ...

A boy walks to his school at a distance of `6 km` with constant speed `2.5(km)/h` and walks back with constant speed of `4(km)/h` . What is the average speed for the round trip in `(km)/h`

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MBD PUBLICATION-MOTION IN A STRAIGHT LINE -QUESTION BANK
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  2. Differentiate between one two and three dimensional motion.

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  3. Distinguish between instantaneous velocity and average velocity.

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  4. Distinguish between speed and displacement.

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  5. What is relative velocity,Elucidate with examples.

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