B. (16%) Q/A

1. (4%) Under what condition would the streamline and path line be coincident?

2. (8%) The car shown in the figure is accelerated to the right at a uniform rate. What way will the balloon move relative to the car? (2%) Please prove and explain your answer. (6%)

Water

3. (4%) If [F] -lb. [m]-lbm, then, please write down ge. (with both value and unit)

1. (4%) Uider what condition would the streamline and path line be coincident? 12. (16%)Q/A 2. (\$\%) The car shown in the figure is accelerated to the right at a uniform rate. What way will the balloon move relative to the car? (2\%6) Please prove and explain your answer. 3. (4%) If [F]= lbf. [m]=lbm, then, please write down ge. (with (6%) both value and unit)