Questions
A particle is projected with a velocity u making an angle with the horizontal. At any instant, its velocity V is at right angles to its initial velocity u ; then V is
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Correct option is C
Because horizontal component of velocity remains constant in projectile motion, henceucosθ=Vcos90∘−θucosθ=Vsinθ or V=ucotθSimilar Questions
Assertion : When the velocity of projection of a body is made n times, its time of flight becomes n times.
Reason : Range of projectile does not depend on the initial velocity of a body.
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