10) A ball is thrown straight up in the air. Name the two forces that oppose its
motion as it moves upwards.
OR
Why do we prefer a sharp-edged knife for cutting?
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As the ball moves through the air, the air resists the motion of the ball and the resistance force is called drag. Drag is directed along and opposed to the flight direction.
Actually, when you throw the ball up into the air the ball will not only be acted on by gravity but friction and resistance from the air molecules colliding with the movement of the ball.
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Answer:
As the ball moves through the air, the air resists the motion of the ball and the resistance force is called drag. Drag is directed along and opposed to the flight direction.
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