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Naveen Grewal

· started a discussion

· 1 Months ago

not clear (Question: 298794.0 )

please elaborate

Question:

A particle is thrown with a speed u at an angle θ with the ground. When the particle makes ϕ angle with the ground, its speed will be:-

Options:
A)

u cos θ

B)

u cos θ cos ϕ

C)

 

u cos θ sec ϕ

D)

u sin θ cos θ

Solution:

Ans: (c) u cos θ sec ϕ 

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