Questions
A body is projected from ground in uniform gravitational field making an angle with horizontal. If ratio of its maximum potential energy to the minimum kinetic energy is 3, the angle of projection is
detailed solution
Correct option is A
mgH12mucosα2=3⇒m.g.u2sin2α/2g12mu2cos2α=3⇒tan2α=3⇒α=60oTalk to our academic expert!
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A ball is projected obliquely with a velocity 49 ms–1 strikes the ground at a distance of 245 m from the point of projection. It remained in air for
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