Question

A projectile can have the same range R for two angles of projection. If t1 and t2 can be the times of flight in the two cases then what is the product of the two times of flight?

• A. $t_1 t_2 \propto R^2$
• B. $t_1 t_2 \propto R$
• C. $t_1 t_2 \propto \frac{1}{ R}$
• D. $t_1 t_2 \propto \frac{1}{ R^2}$

Answer 1

Answer: (B)

$t_1 t_2 \propto R$

Answer 2

The correct option is (B): 72 kg wt