Qualification > Queries
ANY DOUBTS HERE!!!
halosh92:
--- Quote from: nid404 on May 27, 2010, 05:06:12 pm ---yup check the attachment
--- End quote ---
hey nid thankyou ;D
but i got the "R" wrong could u plzz explain why its in such a direction :)
thx
nid404:
hmm....well...it's reaction force...think abt mechanics now..lol...when u have a slope...and something is placed on it...visualize it's normal contact force...hope that helps
halosh92:
--- Quote from: nid404 on May 27, 2010, 05:15:59 pm ---hmm....well...it's reaction force...think abt mechanics now..lol...when u have a slope...and something is placed on it...visualize it's normal contact force...hope that helps
--- End quote ---
thx ;)
halosh92:
phyiscs cie AS
nov 2009 p2
Q3Cii
why do we use the vertical component of velocity when we calculate momentum here why not the horizontal component??
Q4cii
part 2
nid404:
it's falling vertically down...so you use the vertical component
x when weight is F+3.8N =17.8-14.2=3.6cm=0.036m
x when weight is 3.8N=16.3-14.2=2.1cm=0.021m
2 epe= 1/2 kx2 = 1/2 X 1.8 X 10^-2 X (change in x2)
=1/2 X 1.8 X10^-2 X (0.0362-0.0212)
=0.077 J
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