A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, then________________?

A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, then________________?

1. the ball will move to the front
2. the bubble will move to the front
3. the ball will move to the rear
4. the bubble will move to the rear

Find out which of the above statements are correct ?
A. (1) and (2)
B. (1)and(4)
C. (2) and (3)
D. (3) and (4)

In a forced vortex motion, the velocity of flow is________________?

In a forced vortex motion, the velocity of flow is________________?

A. directly proportional to its radial distance from axis of rotation
B. inversely proportional to its radial distance from the axis of rotation
C. inversely proportional to the square of its radial distance from the axis of rotation
D. directly proportional to the square of its radial distance from the axis of rotation