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In projectile , a particle is projected such that magnitude of velocity at the topmost point is half of the magnitude of initial velocity. What is the angle of projection.
Firstly, a projectile motion is a combination of horizontal and vertical motion.At the topmost point of it's trajectory, the particle possess only the horizontal component of it's initial velocity.So, if the initial velocity is uHorizontal component of initial velocity = ucos@And at the topmost point, velocity of particle = u/2 (given)So, according to the condition given, ucos@ = u/2Hence : @ = 60degree
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