A stone is thrown with a velocity 𝑣 making an angle ΞΈ with the horizontal. At some instant, its velocity 𝑉 is perpendicular to the initial velocity 𝑣. Then 𝑉 is

Question : A stone is thrown with a velocity 𝑣 making an angle ΞΈ with the horizontal. At some instant, its velocity 𝑉 is perpendicular to the initial velocity 𝑣. Then 𝑉 is

(A) 𝑣 sin ΞΈ

(B) 𝑣 cos ΞΈ

(C) 𝑣 tan ΞΈ

(D) 𝑣 cot ΞΈ

Answer : option (D)

Solution :

A stone is thrown with a velocity 𝑣 making an angle ΞΈ with the horizontal. At some instant, its velocity 𝑉 is perpendicular to the initial velocity 𝑣. Then 𝑉 is
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