give the meaning of the following:
- static friction
- kinetic friction
- rolling friction
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give the meaning of the following:
- static friction
- kinetic friction
- rolling friction
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Answer:
static friction-is a force that keeps an object at rest.
kinetic friction-is defined as a force that acts between moving surface.
rolling friction-is the force resisting the motion when a body rolls on a surface.
Answer:
Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Fluid friction occurs in liquids and gases. All four types of friction are described below.
static friction
The maximum force exerted by a surface on a body so long as it remains stationary is called the force of static friction.
kinetic friction
The minimum force required to keep the body moving over a surface such that it moves equal distances in equal intervals of time is called the force of sliding friction
rolling friction
The minimum force required to roll a body on a surface is called the force of rolling friction.