The equation of the path of a projectile is given by Y=3x−x2303(x and y are in meters ). The angle of,projection and the range are respectively.
30°, 90m
45°, 60m
30°, 30m
60°, 90m
y=3x−x2303y=tanθx−gx22u2cos2θcomparing tan θ=3⇒θ=60∘R=u2sin2θs=600310×32 =90m