Posted by niharika on Wednesday, July 11, 2012 at 2:17am.
If pressure is given by P=A+B by t and c by D +v where t and v are time and velocity respectively then find dimensional formula of A, B,C&D.

physics  drwls, Wednesday, July 11, 2012 at 6:28am
Please write your equations in an acceptable standard way. Do not use words like "and" and "by" in the equation.
Do you mean
P = A + B/t  C/(D+v) ?
What do you mean by a "dimensional formula?"
In the equation I have written,
A has dimensions of pressure
B has dimensions of (pressure)*time
C has dimensions of (pressure)/(velocity)
D has dimensions of velocity

physics  niharika, Wednesday, July 11, 2012 at 7:12am
yes i mean the above equation which u have written P=A+B/TC/D+V.
The expression which shows how and which of the base quantities represent the dimensions of a physical quantity is called the dimensional formula.

physics  niharika, Wednesday, July 11, 2012 at 7:38am
plz sir help me

physics  Elena, Wednesday, July 11, 2012 at 8:39am
M  mass,
L  length,
T  time
Pressure P
Pa= N/m² = kg•m/s²m²=kg/m•s² =M•L^1•T^2 ,
A = M•L^1•T^2 ,
B= M•L^1•T^1,
C = M•L^2•T^1,
D =L•T^1.

physics  niharika, Wednesday, July 11, 2012 at 12:21pm
thank u mam.

physics  niharika, Wednesday, July 11, 2012 at 12:34pm
i have not understood how n/m square it comes kgm/s2m2 and the cap symbol.

physics  Elena, Wednesday, July 11, 2012 at 1:01pm
Newton is the unit of force
F= ma =>
m –> kg
a> m/s²
N = kg•m/s² =M•L•T^2
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