Question

Two projectiles A and B are thrown with the same speed such that A makes angle $\theta$ with the horizontal and B makes angle $\theta$ with the vertical, then

• A. Both must have same time of flight
• B. Both must achieve same maximum height
• C. A must have more horizontal range than B
• D. Both may have same time of flight

Answer 1

The correct option is D Both may have same time of flight

Depending on the value of $\theta$ one can have same or different time of flight, range or maximum height.
Therefore must statement is wrong .
They may be equal or may not be.
This is only possible for $\theta ={45}^0$