Physics Two Dimensional Motion Question 156
Question: If the angles of projection of a projectile with same initial velocity exceed or fall short of $ 45{}^\circ $ by equal amounts , then the ratio of horizontal ranges is
Options:
A) $ 1:2 $ B)$ 1:3~ $ C) $ 1:4 $ D)$ 1:1 $
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Answer:
Correct Answer: D
Solution:
[d] For complementary angles of projection $ (45{}^\circ +\alpha ) $ and $ (45{}^\circ -\alpha ) $ with same initial velocity u, range R is same. $ {\theta _{1}}+{\theta _{2}}=( 45{}^\circ +\alpha)+( 45{}^\circ -\alpha)=90{}^\circ $
BETA
