Qualification > Sciences
Edexcel PHYSICS Doubts
Romeesa-Chan:
--- Quote from: SZM on November 21, 2011, 03:45:31 am ---dear in physics unit 1, i came across the spec. point, that is ==
demonstrate an understanding of how ICT can be used to collect data for, and display, displacement/time and velocity/time graphs for uniformly accelerated motion and compare this with traditional methods in terms of reliability and validity of data///
wat does this spec, point want and expect to know from us??? can u give me excellent notes for this.. Wat does ICT stand for???
--- End quote ---
Motions can be represented using graphs.
Traditionally, data were collected using rulers and stopwatches.
ICT methods are more accurate, efficient and fast.
An example of ICT method is a motion sensor.
EVIL DOCTOR:
--- Quote from: Ang3l on November 20, 2011, 06:58:12 pm ---Draw a diagram like this (attached)
You have to resolve the pink vector into its component.
As it is in the north-east direction the angle would be 45.
So the x-component will be 8.2cos45 and y will be 8.2sin45
Now add them up as we normally do in vectors.
--- End quote ---
the question didnot mention the angle of north east
who told u its 45 degree ??
astarmathsandphysics:
nort east is half way between north and east
north=0
east =90
(0+90)/2=45
EVIL DOCTOR:
particle initially located at the origin has an acceleration
of aS
5 3.00j^ m/s2 and an initial velocity of vS
i 5 5.00i^ m/s.
Find (a) the vector position of the particle at any time t,
(b) the velocity of the particle at any time t, (c) the coordinates
of the particle at t 5 2.00 s, and (d) the speed of the
particle at t 5 2.00 s.
astarmathsandphysics:
is difficult to read your question Evil Doctor. Can you make it clearer?
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