Question: One o the rectangular components of a velocity of 60kmh −1 is 30 kmh −1 . The other rectangular component is
(A) 30kmh^{-1}
(B) 30\sqrt{3}kmh^{-1}
(C) 30\sqrt{2}kmh^{-1}
(D) Zero
Answer: option (B)
Solution:
One o the rectangular components of a velocity of 60kmh −1 is 30 kmh −1 . The other rectangular component is
with
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