In the shown figure, a projectile is launched with speed 20√2 m/s at 45° and strikes an incline of angle 37°. Find the range OP along the inclined plane.

Question

G1 Physics · Accepted Answer

From the same figure, the impact time is t = 1 s. The horizontal displacement is OQ = uₓt = 20(1) = 20 m. Since the incline makes 37° with horizontal, OQ = OP cos37°. Hence OP = 20/(4/5) = 25 m.