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Friction always opposes relative motion. It does not oppose motion.
Friction is an electric force. It starts acting when two surfaces rub each other.
Say a block is pushed and then released, it gets an initial acceleration and its speed starts increasing. Here friction starts playing its part. Friction starts acting on the block in the direction opposite to that of its motion and it also acts on the ground but its effects there are negligible. The friction slowly reduces the acceleration to zero, then at that stage the block has some velocity. Now also friction continues acting backward on it till it comes to rest.Now there is no relative motion or rubbing so no charges appear on the surfaces to provide a frictional force for speeding up the block.
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∙ 12y ago
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Friction will never speed up an object?
Yes, Friction will never speed up an object because friction slows objects down.
What effect does friction have on the speed of an object?
more friction = less speed
Friction can cause objects to slow down what else can it do?
speed things up
Is it true or false that friction acts to speed up the motion of an object?
False
Why friction is independent of speed?
Friction is independent of speed because an object could not be moving and still have so friction.
Friction will never speed up an object?
Yes, Friction will never speed up an object because friction slows objects down.
Why does friction never speed up object?
You may be thinking of drag instead of friction. Friction between the floor and your foot increases your speed.
Does friction speed up an object?
Friction does not speed up an object; it creates drag and slows it down.
What are ways friction can be increased?
Speed it up!
Friction and speed?
Speed is how fast something is moving. When to things are traveling at the same speed and rubbing together, they can cause friction.
How does friction effects speed?
Friction will reduce an object's speed.
How does friction alter speed?
If there is friction, speed will usually be slowed down.
What effect does friction have on the speed of an object?
more friction = less speed
Truefalse can friction slow things down?
true. Friction DOES slow things down. In fact, if there was no friction once something started moving it wouldn't be able to stop Friction can slow the things down. It's true.
Friction can cause objects to slow down what else can it do?
speed things up
Is it true or false that friction acts to speed up the motion of an object?
False
Why friction is independent of speed?
Friction is independent of speed because an object could not be moving and still have so friction.
