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Question : 120 of 174
Marks:
+1,
-0
Solution:
Position vector of the particle
(r)=(a‌cos‌ω‌t)+(a‌sin‌ω‌t) velocity vector
==(−aω‌sin‌ω‌t)+(aω‌cos‌ω‌t)=ω[(−a‌sin‌g‌ω‌t)+(a‌cos‌ω‌t)] .=ω[(−a‌sin‌ω‌t)+(a‌cos‌ω‌t)]. [(a‌cos‌ω‌t)+(a‌sin‌ω‌t)]=ω[−a2‌sin‌ω‌t‌cos‌ω‌t+a2‌cos‌ω‌t‌sin‌ω‌t]=0Therefore velocity vector is perpendicular to the displacement vector.
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