Question

4. Three balls of same masses are
projected with equal speeds at an
angles 15°, 45°, 75° and their ranges
are respectively
(a) By > Rg > Rz
b (6) By Rg < Rez
(c) Py = R = Rez
(d) R = R₂ <R2​

Answer 1

Answer: d.

R2> R1=R3 becuase Sin 2theta = 2 sin . cos and cos 90-theta = Sin theta.

so Sin 2x15= Sin 2x75