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JEE Main 8 Jan 2020 Shift 2 Solved Paper

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Question : 18

Total: 75

A particle m ov es such that its p o sition vector

(t)=cos‌ω‌t‌

+sin‌ω‌t‌

where ω is a constant and t is time. Then which of the following statements is true for the velocity

(t) and acceleration

(t) of the particle :

→
v
is perpendicular to
→
r
and
→
a
is directed towards the origin
→
v
and
→
a
both are parallel to
→
r
→
v
and
→
a
both are perpendicular to
→
r
→
v
is perpendicular to
→
r
and
→
a
is directed away from the origin

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