Question

Upon spotting Mario standing on a block, a fish enemy (cheep cheep) jumps to defeat Mario by its deadly touch. Although Mario is located along a straight-line path at an angle φ and distance d, cheep cheep must launch himself at a differene angle θ0 if its parabolic path is to intersect Mario. What launch angle θ0 is required for this enemy to be at the top of the parabolic path when he reaches Mario?

Answer 1

A problem of projectile motion