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標題: [物理 Phy] HKDSE Physics Question Review (2019-10-29) [打印本頁]

作者: SC3U    時間: 2019-10-29 12:50 AM     標題: HKDSE Physics Question Review (2019-10-29)

Question 1

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Even 2D linear momentum is currently out of syllabus, you can still deploy your M2 knowledge to establish the solution. Note how to resolve the components of a vector.

[ 本帖最後由 SC3U 於 2019-10-29 12:55 AM 編輯 ]

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作者: SC3U    時間: 2019-10-29 12:54 AM     標題: Solution to Question 1

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If your DSE math is poor, you are cooked.

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作者: SC3U    時間: 2019-10-29 12:59 AM     標題: Question 2

Now we continue to play math game.

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Now using the above geometric features to tackle below

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作者: SC3U    時間: 2019-10-29 01:01 AM     標題: Solution to Question 2

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作者: SC3U    時間: 2019-10-29 01:03 AM     標題: Question 3

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Straightforward

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作者: SC3U    時間: 2019-10-29 01:07 AM     標題: Solution to Question 3

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Net force = Net Torque = 0

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作者: SC3U    時間: 2019-10-29 01:11 AM     標題: Question 4

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作者: SC3U    時間: 2019-10-29 01:12 AM     標題: Question 4

Just 9 plug the formula from DSE exam paper.
But what I expect is the orthodox steps:

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=END=



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