(a) If we neglect air resistance, horizontal component of
velocity is always same.
Speed is same, so K.E. is same
A ball is thrown upwards and it returns to ground describing a parabolic path. Which of the following has the same value at the time of throw and the time of return? I. Kinetic energy of the ball II. Speed of the ball III. Vertical component of velocity (a) I and II (b) II and III (c) III only (d) I, II and III
