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Question

Which of the following is not an example of a motion with a constant speed but variable velocity?

A
A car moving at 80kmph on a straight road
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B
A car moving at 80kmph on a square track
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C
A car moving at 80kmph on a circular track
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D
A car moving at 80kmph on a zig-zag path
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Solution

The correct option is A A car moving at 80kmph on a straight road
Apart from motion on straight road, for all other cases, direction of motion changes although the speed remains uniform.
So, speed remaining constant, velocity is variable for all other cases.

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