Question #6425929Single Choice
Physics
Question
A small steel ball with mass m falls vertically downward with a speed
Options
A
Since
, the ball's momentum does not change.
B
The ball's momentum changes, and its magnitude is 2mv, with the direction vertically upward.
C
The ball's momentum changes, and its magnitude is 2mv, with the direction vertically downward.
D
The ball's momentum changes, and its magnitude is mv, with the direction vertically upward.
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