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Projectile motion
Class 11, Motion in a plane, NEET, Projectile Motion

A projectile is thrown at angles θ and (90 − θ) with the horizontal with the same speed of 20 ms⁻¹ from the same point of projection. If difference between the individual heights attained by them is 5 m, then the individual heights are, respectively, (g = 10 ms⁻²)

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motorboat
Class 11, JEE, Motion in a straight line, NEET, Relative velocity in 1D

A motor boat moving downstream overcame a raft at a point A; after τ (Tau) min, it turned back and after some time, met the raft again at a distance l = 6 km from point A. Calculate flow of velocity assuming the speed of the boat is constant.

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