A projectile must pass through three equal vertical rings (diameter 2 m), separated by 8 m, with their highest points at height 32 m above launch level. Find tan α for the projection angle α. Use the supplied figure.
Physics · Mixed Chapter
JEE Main Practice

Question

A projectile must pass through three equal vertical rings (diameter 2 m), separated by 8 m, with their highest points at height 32 m above launch level. Find tan α for the projection angle α. Use the supplied figure.

Physics · Mixed Chapter

G1 Physics · Accepted Answer

Step 1: A projectile follows y = x tanα − [g x²/(2u² cos²α)]. Step 2: To pass through three rings, the horizontal positions and intersection heights must be read from the diagram; ring tops alone do not fix unique intersections. Step 3: The PDF prints tanα = 1 (α = 45°). This answer is retained from the source, but the diagram does not establish unique crossing points for a fully independent numerical derivation.