A particle moves in the east direction with \( 15 \mathrm{~m} / \mathrm{sec} \) for \( 2 \mathrm...
A particle moves in the east direction with \( 15 \mathrm{~m} / \mathrm{sec} \) for \( 2 \mathrm{sec} \) then northwards with \( 5 \mathrm{~m} / \mathrm{s} \) for \( 8 \mathrm{sec} \). Average speed of the particle is :-
(1) \( 1 \mathrm{~m} / \mathrm{s} \)
(2) \( 5 \mathrm{~m} / \mathrm{s} \)
- (3) \( 7 \mathrm{~m} / \mathrm{s} \)
(4) \( 10 \mathrm{~m} / \mathrm{s} \)
\( \mathrm{P} \)
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