Solution to Test Paper 1
From Mechanics
(Difference between revisions)
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| 1 (b) | | 1 (b) | ||
- | | | + | | <math>\begin{align} |
- | + | & 0=7-9\textrm{.}8t \\ | |
+ | & t=\frac{7}{9\textrm{.}8}=0\textrm{.}714\text{ s} \\ | ||
+ | \end{align}</math> | ||
+ | | (3 marks) | ||
|- | |- | ||
- | | | + | | |
- | | | + | | |
- | | | + | | '''(6 marks)''' |
|- | |- | ||
| 2 (a) | | 2 (a) | ||
- | | | + | | <math>\begin{align} |
- | | | + | & T-800\times 9\textrm{.}8=800\times 0\textrm{.}2 \\ |
+ | & T=\text{7840}+\text{160}=\text{8000 N} \\ | ||
+ | \end{align}</math> | ||
+ | |||
+ | | (3 marks) | ||
|- | |- | ||
| 2 (b) | | 2 (b) | ||
- | | | + | | <math>\begin{align} |
- | | | + | & T-800\times 9\textrm{.}8=800\times (-0\textrm{.}2) \\ |
+ | & T=\text{7840}-\text{160}=\text{7680 N} \\ | ||
+ | \end{align}</math> | ||
+ | |||
+ | | (3 marks) | ||
|- | |- | ||
| 2 (c) | | 2 (c) | ||
- | | | + | | <math>T=800\times 9\textrm{.}8=7840\text{ N}</math> |
- | | | + | | (1 mark) |
|- | |- | ||
- | | | + | | |
- | | | + | | |
- | | | + | | '''(7 marks)''' |
Revision as of 18:09, 17 January 2011
1 (a) | \displaystyle \begin{align}
& {{0}^{2}}={{7}^{2}}+2(-\textrm{.}8)s \\ & s=\frac{49}{19\textrm{.}6}=2\textrm{.}5 \\ & \text{Max Height }=\text{ 5}+\text{2}\text{.5}=\text{7}\text{.5 m} \\ \end{align} | (3 marks)
|
1 (b) | \displaystyle \begin{align}
& 0=7-9\textrm{.}8t \\ & t=\frac{7}{9\textrm{.}8}=0\textrm{.}714\text{ s} \\ \end{align} | (3 marks) |
(6 marks)
| ||
2 (a) | \displaystyle \begin{align}
& T-800\times 9\textrm{.}8=800\times 0\textrm{.}2 \\ & T=\text{7840}+\text{160}=\text{8000 N} \\ \end{align} | (3 marks)
|
2 (b) | \displaystyle \begin{align}
& T-800\times 9\textrm{.}8=800\times (-0\textrm{.}2) \\ & T=\text{7840}-\text{160}=\text{7680 N} \\ \end{align} | (3 marks)
|
2 (c) | \displaystyle T=800\times 9\textrm{.}8=7840\text{ N} | (1 mark)
|
(7 marks)
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3 (a) | more cells in the same row here | even more cells in the same row here
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3 (b) | more cells in the same row here | even more cells in the same row here
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3 (c) | more cells in the same row here | even more cells in the same row here
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3 (d) | more cells in the same row here | even more cells in the same row here
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cells in the next row go here | more cells in the same row here | even more cells in the same row here
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4 (a) | more cells in the same row here | even more cells in the same row here
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4 (b) | more cells in the same row here | even more cells in the same row here
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4 (c) | more cells in the same row here | even more cells in the same row here
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cells in the next row go here | more cells in the same row here | even more cells in the same row here
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5 (a) go here | more cells in the same row here | even more cells in the same row here
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5 (b) | more cells in the same row here | even more cells in the same row here
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5 (c) | more cells in the same row here | even more cells in the same row here
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5 (d) | more cells in the same row here | even more cells in the same row here
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cells in the next row go here | more cells in the same row here | even more cells in the same row here
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cells in the next row go here | more cells in the same row here | even more cells in the same row here
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Row heading 1 | Cell 2 | Cell 3 |
Row heading A | Cell B | Cell C |