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a BALL IS THROWN UPWARD N IT RETURNS TO GROUND DESCRIBING A PARABOLIC PATH. WHICH OF THE FOLLOWING REMAINS CONSTANT AND WHY PLS EXPLAIN a) KE OF BALL B) SPEED OF BALL C) HROZONTAL COMPONENT OF VELOCITY D ) VERTICAL COMPONENT OF VELOCITY
Dear friend,
only the horizontal component remains constant as as 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.
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C-it si the correct one .
as vert. compo. of velo. i.e.=v sinA is a variable compo.
and only Hz. compo. i.e.v cosA will be constant.
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