Question

Three particles A, B and C are projected from the same point with the same initial speeds making angles $30^o,45^o$ and $60^o$ respectively with the horizontal. Which of the following statements is correct?

• A. A, B and C have unequal ranges
• B. Ranges of A and C are equal and less than that of B
• C. Ranges of A and C are equal and greater than that of B
• D. A, B and C have equal ranges

Answer 1

Answer: (B)

When a projectile is projected at an angle q or at an angle $(90^o-\theta )$ with the horizontal, the horizontal range remains the same. The horizontal range is maximum when the angle of projection is $45^o$.