Q. In a Lagrangian system, the position of a fluid particle in a flow is described as 𝑥 = 𝑥𝑜𝑒−𝑘𝑡 and 𝑦 = 𝑦𝑜𝑒𝑘𝑡 where t is the time while 𝑥𝑜, 𝑦𝑜, and k are constants. The flow is
A. unsteady and one-dimensional
B. steady and two-dimensional
C. steady and one-dimensional
D. unsteady and two-dimensional
Ans: steady and two-dimensional
