Question

Assertion Sum of maximum height for angles a and 90°-a is independent of the angle of projection. Reason For angles a and 90°-a, the horizontal range R is same.

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Answer 1

Answer:

if both Assertion & Reason are True but Reason is not correct explanation of the Assertion.

Answer 2

The horizontal range is assertion is correct but reason is incorrect.

Explanation:

Range of projectile is given by,

$R=(\frac{u^{2}}{g})$sin2∅

$R_{1}=(\frac{u^{2}}{g})$(sin2∅)

$R_{2}=(\frac{u^{2}}{g})$($sin2(90^{0}$-∅)

$R_{2}=(\frac{u^{2}}{g})$(sin2∅)

$R_{1}=R_{2}$

Horizontal range depends upon angle of projection and it is same for complementary angles ∅ and (90-∅).