Qualification > Sciences
physics-cie
staceyboy3:
I think of the i and j to be x and y coordinates
a) distance travelled in one second = sqr(5^2+8^2) = sqr(89) =(around) 9.43 ms^-1
b) P = (2+5t)i + (1+8t)j ------- just thinking components
c) looking at i-axis, 1 second to move 5 right, so 8/5 seconds to move 8 right
8/5 sec = 1.6 sec
d) P(1.6) = 10i + 13.8j
7j + aj = 13.8j -------- a is distance travelled by player
aj = 6.8j
a=6.8
v = d/t = 6.8/1.6 = 4.25 ms^-1
e) friction
Might need checking, but it looks right to me :)
halosh92:
--- Quote from: staceyboy3 on December 07, 2009, 10:14:04 am ---I think of the i and j to be x and y coordinates
a) distance travelled in one second = sqr(5^2+8^2) = sqr(89) =(around) 9.43 ms^-1
b) P = (2+5t)i + (1+8t)j ------- just thinking components
c) looking at i-axis, 1 second to move 5 right, so 8/5 seconds to move 8 right
8/5 sec = 1.6 sec
d) P(1.6) = 10i + 13.8j
7j + aj = 13.8j -------- a is distance travelled by player
aj = 6.8j
a=6.8
v = d/t = 6.8/1.6 = 4.25 ms^-1
e) friction
Might need checking, but it looks right to me :)
--- End quote ---
i did my test today ;D thank god thiss didnt come
but anywayz thx alot the drawing is very clear 2!!!!!!!!!!!!!! its all correct ;D ;D ;D
staceyboy3:
--- Quote from: halosh92 on December 07, 2009, 11:23:23 am ---
i did my test today ;D thank god thiss didnt come
but anywayz thx alot the drawing is very clear 2!!!!!!!!!!!!!! its all correct ;D ;D ;D
--- End quote ---
Nice! How did it go?
halosh92:
--- Quote from: staceyboy3 on December 07, 2009, 05:13:08 pm ---Nice! How did it go?
--- End quote ---
I literally screwed up C1!!!!
but M1 was unexpectedly gd!! to an extent that i might get a full mark...nothing too complicated , things from the recent years :D
staceyboy3:
--- Quote from: halosh92 on December 07, 2009, 05:30:13 pm ---
I literally screwed up C1!!!!
but M1 was unexpectedly gd!! to an extent that i might get a full mark...nothing too complicated , things from the recent years :D
--- End quote ---
Good job :)
I did maths CIE, did Pure maths and mechanics papers. Got an A for pure, but a D for mechanics :S and got an overall B
But im going to do it again with the full A-level, this time without mechanics :)
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