Which of the following situations would be true according to Newton's law of acceleration?
A) A basketball is in flight (under the affect of gravity) and will continue to travel forward with constant horizontal velocity until stopped by another external force (such as hitting the ground, the hoop or being caught by another player)
B) A soccer player kicks a ball across the field. As the player applies a force to the ball with their foot, the ball applies an equal and opposite force onto the player's foot.
C) A javelin is in flight. Acceleration due to gravity affects the flight path of the javelin.
D) A volleyball player spikes the ball. The change of motion (momentum) of the ball is proportional to the amount of force applied by the player and inversely proportional to the mass of the ball.
E) A golf ball sits on the tee. As the ball applies a force to the tee it is balanced by an equal and opposite force applied by the tee to the ball (∑F = 0) .
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