Questions
A body is projected from point A on an inclined plane having inclination θ with horizontal with velocity u in a direction perpendicular to the inclined plane as shown in figure. Then range of the projectile on inclined plane is
a
2u2gtanθ.secθ
b
u2gsin2θ.cosθ
c
2u2gsecθ
d
u2gsinθ
detailed solution
Correct option is A
Considering X axis along inclined plane and Y axis perpendicular to inclined plane.Ti=Time of flight on inclined plane=2ugcosθ∴ Ri=12(gsinθ)Ti2=12(gsinθ)4u2g2cos2θRi=2u2gtanθ.secθTalk to our academic expert!
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