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Questions  

A body thrown horizontally from the top of tower strikes the ground after three seconds at an angle 45° with the horizontal. The speed with which the body was projected

a
9.8 ms–1
b
19.6 ms–1
c
29.4 ms–1
d
32.4 ms–1

detailed solution

Correct option is C

∵tan⁡θ=VyVx⇒1=VyVx∵θ=45∘⇒u=gt=9.8×3=29.4ms−1

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Similar 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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