Find time of flight of the projectile along the inclined plane as shown in figure. The projectile speed is 20√2 m/s at 45° to the horizontal and the incline is at 30°. (g = 10 m/s²)

Question

G1 Physics · Accepted Answer

With uₓ = uᵧ = 20 m/s and incline y = x tan30°, 20t-5t² = 20t/√3. The nonzero root is t = 4(1-1/√3) ≈ 1.69 s.