A plane is inclined at an angle α = 30° with respect to the horizontal. A particle is projected with a speed u = 2 ms-1, from the base of the plane, making an angle θ = 15° with respect to the plane as shown in the figure. The distance from the base, at which the particle hits the plane is close to:[Take g = 10 ms-2]

A plane is inclined at an angle α = 30° with respect to the horizont

1.	A plane is inclined at an angle α = 30° with respect to the horizontal. A particle is projected with a speed u = 2 ms-1, from the base of the plane, making an angle θ = 15° with respect to the plane as shown in the figure. The distance from the base, at which the particle hits the plane is close to:[Take g = 10 ms-2]
A.	20 cm
B.	18 cm
C.	26 cm
D.	14 cm
Answer» B. 18 cm

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