Motion in a Plane - Result Question 39

42. Two bodies of same mass are projected with the same velocity at an angle $30^{\circ}$ and $60^{\circ}$ respectively. The ratio of their horizontal ranges will be

[1990]

(a) $1: 1$

(b) $1: 2$

(c) $1: 3$

(d) $2: \sqrt{2}$

Topic 4: Relative Velocity in Two Dimensions & Uniform Circular Motion

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Answer:

Correct Answer: 42. (a)

Solution:

  1. (a) Horizontal range is same when angle of projection is $\theta$ or $(90^{\circ}-\theta)$.