A body covers half the distance with a speed of 20 m/s and the other half with 30 m/s. The average speed of the body during the whole journey is |
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(a) |
(b) |
(c) |
(d) |
none of the above |

A body covers half the distance with a speed of 20 m/s and the other half with 30 m/s. The average speed of the body during the whole journey is |
|||||||

(a) |
(b) |
(c) |
(d) |
none of the above |

1 Answer

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