Answer the following:

PHYSICS · Multi-part · CBSE · Physics · Motion · Motion

Problem

Answer the following: (i) (a) A motorbike slows down from

20\text{ m s}^{-1}

to

8\text{ m s}^{-1}

in

3\text{ s}

. Calculate its acceleration. (ii) (b) State whether the value obtained represents acceleration or retardation.

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