Kinematics Question 464

Question: Assertion: When the velocity of projection of a body is made n times, it’s time of flight becomes n times.Reason: Range of projectile does not depend on the initial velocity of a body.

Options:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

Show Answer

Answer:

Correct Answer: C

Solution:

$ T\propto u $ and $ R\propto u^{2} $

When velocity of projection of a body is made n times, then it’s time of flight becomes n times and range becomes n2 times.



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