cq_1_171

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PHY 201

Your 'cq_1_17.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

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A steel ball rolls down a ramp and collides with a marble, as in the video. The marble is slightly smaller and quite a bit less massive than the ball.

• If they both experience forces of the same magnitude (in this case, equal and opposite forces), which will have an acceleration of the greater magnitude?

answer/question/discussion: ->->->->->->->->->->->-> :

The smaller mass marble

F=m*a if F is the same and m is smaller, a must be larger. If m is larger, a must be less.

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• If the forces were exerted during identical time intervals, which would have the greater change in speed?

answer/question/discussion: ->->->->->->->->->->->-> :

The smaller mass marble.

F*’dt = m*’dv if F*’dt is the same and m is smaller, ‘dv must be larger. If m is larger, ‘dv must be less.

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&#Very good responses. Let me know if you have questions. &#