Question

A particle is projected horizontally with a speed $u$ from the top of a plane inclined at an angle $\theta$ with the horizontal. How far from the point of projection will the particle strike the plane?

• A. $2 u^2 \tan \theta \cdot \sec \theta / g$
• B. $u^2 \sin \theta \cdot \cos \theta / g$
• C. $3 u^2 \cos \theta \cdot \sec \theta / g$
• D. $2 u^2 \sin ^2 \theta / g$

Answer 1

Answer: (A)

Correct answer is (a) $2 u^2 \tan \theta \cdot \sec \theta / g$