A ball rolls off the edge of a table. The horizontal component of the ball's velocity remains constant
during its entire trajectory because:
a) The net force acting on the ball is zero
b) The ball is not acted upon by a force in the horizontal direction
c) The ball is acted upon by a force in the horizontal direction
d) The ball is acted upon by a force in the only vertical direction
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B part and D part, only gravity is acting, which acts along vertical direction and has no component in horizontal direction.
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