Physics
Grade-9
Easy
Question
Which force is acting here?
- Static friction
- Sliding friction
- Rolling friction
- Fluid friction
Hint:
Fluid friction is a force that restricts the movement either within itself or of another medium moving through the liquid (including air).
The correct answer is: Fluid friction
When a man with a parachute flies in the air, it causes fluid friction.
- The frictional force formed in air or liquid is the liquid/fluid frictional force.
- It resists the motion caused by the contact of an object with air.
- For example: Liquid frictional force is caused when a man with a parachute flies in the air.
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