CBSE Class 11-science Answered

Horizontal motion of a horizontally projected object is unaffected, since there is no net force in horizontal direction. Of course, we are neglecting the air resistance. The vetical velocity will increases as a result of net force in vertical direction i.e. force of gravity.

Consider a box pushed horizontally on a smooth frictionless table. As it comes to the edge, the box will be projected from the edge with some velocity. Now we'll push a cart on the ground, right below the point the table edge of box projection, with the same velocity. We'll find the box lands into the cart, indicating that in the same time they travel the same horizontal distance. Hence, the horizontal motion is unaffected.

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