Need 1995 engineering studies past paper answers. (1 Viewer)

[astroman]

Hey guys title says it all, need 2/3u engineering science past paper answers.

 

[astroman]

bump

 

[astroman]

.

 

[astroman]

.

 

[astroman]

.

 

[astroman]

.

 

[D94]

I think it's clear people don't have it. Is there a particular question that you want the method/solution/answer to?

Also, you could always ask your teacher about certain questions.

 

[astroman]

yea question 1 from http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2000exams/hsc00_enginsci/95ENSC2.PDF

 

[astroman]

and question 9 part two from same paper

 

[D94]

Question 1: http://i.imgur.com/ARVLw9b.jpg

I'm fairly certain it is correct. But the general idea is to determine the sum of moments about a point where you don't need to calculate some unknown values (in this case, it would be B_x and B_y.

As for Question 9, I haven't done that in a while, so I'm a bit sketchy on what you need to do. However, just from observation, the number of revolutions must be a function of the number of teeth, otherwise there not be any benefit from adding or removing teeth. From intuition, the answer must be 49/17.

Edit: I misread the angle in question 1 - should have been 60 degrees not 50 degrees.

 

[astroman]

i got 306 for question 1...but urs seems correct, any idea on the other question