A particle is projected from the ground . Point of projection is taken as origin, horizontal direction as X-axis and verticle upward direction ass Y-axis. Equation of trajectory of the partcle is y=alphax-betax^(2). Horizontal range of the projectile is

A particle is projected from the ground . Point of projection is taken

1.	A particle is projected from the ground . Point of projection is taken as origin, horizontal direction as X-axis and verticle upward direction ass Y-axis. Equation of trajectory of the partcle is y=alphax-betax^(2). Horizontal range of the projectile is
Answer» `alpha +beta` `alpha+beta` `alpha//beta` `beta//alpha` Solution :(C): We can understant that y-coordinate of the particle BECOMES ZERO when it hits the ground . `y=alphax-beta x^(2) =0` `RARR x=alpha//beta` Thus `alpha//beta` is the range of projectile . HENCE , option (c) is correct .