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28.A ball is thrown upwards and returns to the grounddescribing a parabolic path. Which of the followingquantities remains constant?(1)(2)(3)(4)Kinetic energy of the ball.Speed of the ball.Vertical component of velocityHorizontal component of velocity

Answer»

Option (4) is the correct answer.

The horizontal component of the velocity (v_x) remains constant throughout the motion,



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