Question

. Fill in the blanks :-
1. To reduce fluid friction, the object should have_____shaped.
2. The frictional force_______
with the____ roughness of the surface.
3. The frictional force exerted by fluids is also called_______.
4. Friction produces________.
5. The substances which reduce friction are called________.​

Answer 1

Answer:

1. To reduce fluid friction, the object should have a streamlined shape.

Answer 2

1.streamlined shape

2. Increases with increasing

3.drag

4.heat

5.lubricant