Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 27)
27.
Static friction is always __________ dynamic friction.
Discussion:
11 comments Page 1 of 2.
Jack Huesman said:
1 decade ago
There is no unique value of static friction. If there is no external force, there is ZERO static friction.
Say it takes a 30-N force to start a body moving, then if you apply a 5-N pushing force, static friction will have a magnitude of 5 N. If you apply a 15-N force, static friction will have a magnitude of 15 N. If you apply a 29.999995-N force, static friction will have a magnitude of 29.999995 N.
Say it takes a 30-N force to start a body moving, then if you apply a 5-N pushing force, static friction will have a magnitude of 5 N. If you apply a 15-N force, static friction will have a magnitude of 15 N. If you apply a 29.999995-N force, static friction will have a magnitude of 29.999995 N.
Ravidas said:
9 years ago
Static force means the force required to move the body when at rest and dynamic force means the force required to move the body when in motion.
So the force required to move the body at rest always greater than the force required to move the body in motion.
So the force required to move the body at rest always greater than the force required to move the body in motion.
(9)
Nikhil gaurkar. said:
5 years ago
Static force is the force whose magnitude is and direction is the same with respect to time, while dynamic force is a force whose direction and magnitude is changes with respect to time.
So, static friction is always greater than dynamic friction.
So, static friction is always greater than dynamic friction.
(1)
Ravi said:
6 years ago
Static friction is greater then dynamic friction when the body is not moving. When the body starts moving it is not right.
Yo Yo Honey Singh said:
1 decade ago
If friction force less body tends to move.
But friction force more body cannot move without effecting external force.
But friction force more body cannot move without effecting external force.
Muhammad Adnan awan said:
1 decade ago
Static friction is greater than dynamic because body cannot move without any external force.
Akshata said:
6 years ago
@Ravidas.
You have explained it very clearly and in a simple way, thanks.
You have explained it very clearly and in a simple way, thanks.
Rupa frontline said:
8 years ago
The static friction always less than dynamic.
Ar Mughal said:
8 years ago
Yes, right, thanks a lot @Ravidas.
Mohan Krishna said:
8 years ago
Yes, you are right @Ravidas.
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