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Physics 9702/21

How did you find the exam??


  • Total voters
    25
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What did you guys get for the force of that ball thrown in free fall ?
 
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ke was just o.5*mass*initial speed squared

The ratio was just 8 and 1/8 the force was 16/21
 
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cuz it asked what was the frictional force and you knew that KE=GPE + HEAT FRICTION cuz it was upwards and when it reached 21m V=0 by calculating HEAT enrygy u divided by 21m and got the force by W=FD
 
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For the Radio-waves?
Well, wrote the strongest reception would be a O,weakest in between OP, and also strong at P,but not as much as O... Not too sure..
 
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SAME here heheh! u knew that beteween OP was a minima ! and if u calculated the path difference for P which was sth like 6 lambda which means its a maxima there ! nice what ahbout those vectors they were dead easy im afraid the grade boundary is pretty high and ppl get screwed
 
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Yea, I calculated it but on a blank page... Didnt put it down on the answer.... looks like it'l be high...
Which vectors?? Cant remember,..
 
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from the start having a suspendded ,mass to calculate thetha was dead easy i gott screwed by a big boundary once hope wont happen this times
 
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Ohhh.. I remember.. I got theta as 44.2.. Cant remember my T value... What did you get?
I hope its low! At most it should be 43 for an A..
 
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The test, simply put, was easy.

Now these boundaries will be dead high, and the people that would've gotten A* anyways, will get them, but average people like me will now have to deal with slightly weaker student competition because of the boundary being so high.
 
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