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Exercise -1SECTION: (A) DEFINITION, PROJECTILE ON A HORIZONTAL PLANE1. A ball is thrown upwards. it returns to ground describing a parabolic path. Which of the following remainsconstant?(A) speed of the ball(C) vertical component of velocity(B) kinetic energy of the ball(D) horizontal component of velocity. |
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Answer» only the horizontal component remains constant asas there is no component of acc. in horizontal direction. The g aaceleration due to gravity acts downwords hence there is no accln in horizontal direction, the velocity changes in vertical direction as goes up and down while in horizontal it goes only forward. what is answer number a,b,c,or d |
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