When an object falls through air, there is
a drag force (with dimension M x L/T^2) that
depends on the product of the surface area of
the object and the square of its velocity; i.e.,
F_air = C A v^2 ;
where C is a constant.
The constant C has the dimension of
1. [C] =M /L^3
2. [C] =M /T x L^2
3. [C] =M /T^2 x L^22
4. [C] =T x L^2 /M
5. [C] =T^2 x L^2 /M
6. [C] =T/M
7. [C] =T^2 x L /M
8. [C] =M/T
9. [C] =M/L^2
10. [C] =T x L /M
The Constant C has the dimension of?
ML/T^2=C[L^2]x[L/T]^2
ML/T^2=C[L^3/T^2]
ML=CL^3
C=M/L^2
Answer is (9),
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