physics expert..
-
V^2 = acceleration
isit??
v= velocity -
where u get that from...
-
Velocity can be thought of as the integral of acceleration with respect to the time.
But then at your level, you won't be touching that yet. -
some dy/dx shiit is it?
-
It's covered in Add Maths right?Originally posted by ditzy:Velocity can be thought of as the integral of acceleration with respect to the time. But then at your level, you won't be touching that yet.
Don't tell me he's not even Sec 4 yet. -
LOLx.Originally posted by charlize:It's covered in Add Maths right?
Don't tell me he's not even Sec 4 yet. -
Somehow I kind of regret returning everything back to school, because in my job I still have to use it day by day.Originally posted by charlize:It's covered in Add Maths right?
Don't tell me he's not even Sec 4 yet.
-
more like dv/dt
-
wah lau.. me already completed my mech engineering liao..me forget everything le.. so sad so asking u all ma..
anyway what condition/ variable is required to find acceleration in a problem sum? -
These useless stuff should be returned to the school immediately once the exam is over.Originally posted by ditzy:Somehow I kind of regret returning everything back to school, because in my job I still have to use it day by day.
Really. -
Errrr, time and displacement? I hope wherever you work, your company ain't certified ISO9001, or you'll be taking company exams twice a year like me.
-
Wtf.Originally posted by ditzy:Errrr, time and displacement? I hope wherever you work, your company ain't certified ISO9001, or you'll be taking company exams twice a year like me.
Exams?
MCQ questions? Essay writing ?
Can use scientific calculator or not? -
aiyo i also need to take exam every year..
-
Hand written, 2 hours each paper, 5 levels.Originally posted by charlize:Wtf.
Exams?
MCQ questions? Essay writing ?
Can use scientific calculator or not? Got another is drawings one, can spend one whole day skipping meals one. Directly affects promotion and how much you get year end bonus. -
Damn.Originally posted by ditzy:Hand written, 2 hours each paper, 5 levels. Got another is drawings one, can spend one whole day skipping meals one. Directly affects promotion and how much you get year end bonus. -
so v2-v1= acceleration ?
-
U mean V power 2?Originally posted by usck:V^2 = acceleration
isit??
v= velocity
acceleration=ms^-2
V^2=m^2s^-2
Hence u can see u are dimensionally wrong in saying V^2= acceleration.
Think of acceleration as RATE of CHANGE of VELOCITY! i.e dimensionally, velocity over time.
But note, a correct physics equation is ALWAYS DIMENSIONALLY correct but the converse is not true.
Eg, s=ut+0.5at^2 (correct)
s=2ut+10at^2 (not correct but dimensionally sound) -
Need tuition??? Just give me a share of ur end of year bonus as fees...Originally posted by ditzy:Hand written, 2 hours each paper, 5 levels. Got another is drawings one, can spend one whole day skipping meals one. Directly affects promotion and how much you get year end bonus. joking only 
-
a NET/RESULTANT FORCE always causes acceleration.....2ND law of motion from NEWTON.Originally posted by usck:wah lau.. me already completed my mech engineering liao..me forget everything le.. so sad so asking u all ma.. anyway what condition/ variable is required to find acceleration in a problem sum?
In mech problem always draw a good force diagram, it really helps. -
lol...thats y ts need to tell us how he get v^2 = acceleration...cos up to sec 4 physic theres no such formula... acceleration= V-U / t
where V = final position and U= initial position and t = time -
Ermm actually dimension analysis can tell st away TS is wrong to say V^2=acceOriginally posted by snop_coolz:lol...thats y ts need to tell us how he get v^2 = acceleration...cos up to sec 4 physic theres no such formula... acceleration= V-U / t
where V = final position and U= initial position and t = time
I mean even in masters I hav not heard of v^2=acceleration -
acceleration=ms^-2 = metre per second ^-2??Originally posted by Hamiltonian1125:U mean V power 2?
acceleration=ms^-2
V^2=m^2s^-2
Hence u can see u are dimensionally wrong in saying V^2= acceleration.
Think of acceleration as RATE of CHANGE of VELOCITY! i.e dimensionally, velocity over time.
But note, a correct physics equation is ALWAYS DIMENSIONALLY correct but the converse is not true.
Eg, s=ut+0.5at^2 (correct)
s=2ut+10at^2 (not correct but dimensionally sound)
V^2=m^2s^-2
what does m, s stands for?
this equation s=ut+0.5at^2 is from thermodynamics right?? -
m=metreOriginally posted by usck:acceleration=ms^-2 = metre per second ^-2??
V^2=m^2s^-2
what does m, s stands for?
s=seconds
acc is metre per second squared -
mayb it is easier if ts tell us which lvl are u at..so its easier to help u..
-
Either poly or degree I think...Originally posted by usck:wah lau.. me already completed my mech engineering liao..me forget everything le.. so sad so asking u all ma.. anyway what condition/ variable is required to find acceleration in a problem sum?