Q.
If area (A), velocity (v) and density (p) are taken as fundamental units, what is the dimensional formula for force?
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a
Av2p
b
A2VP
c
AVP2
d
AVP
answer is A.
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Detailed Solution
Let ,F=Axvyρz, then MLT−2=L2xLT−1yML−3z=MzL2x+y−3zT−yThis gives z=1,2x+y−3z=1 and y=2Solving we get X=1 ,Y= 2,and Z =1∴ F=AV2P
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