Motion in A Straight Line

Question: A person travels along a straight road for the first half time with a velocity \[{v_1}\] and the next half time with a velocity \[{v_2}\] . The mean velocity \[V\] of the man is

1) \[\frac{2}{V} = \frac{1}{{{v_1}}} + \frac{1}{{{v_2}}}\]

2) \[V = \frac{{{v_1} + {v_2}}}{2}\]

3) \[V = \sqrt {{v_1}{v_2}} \]

4) \[V = \sqrt {\frac{{{v_1}}}{{{v_2}}}} \]

Solution:

Explanation: Explaination

uniform-motion

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