please answer me fast
Answers
Answer:
- non-contact force is a force which acts on an object without coming physically in contact with it. ... In contrast a contact force is a force applied to a body by another body that is in contact with it.
- The frictional force opposing the motion of the crate is equal to the applied force but acting in the opposite direction. ... When the applied force is greater than the maximum, static frictional force, the object moves but still experiences friction. This is called kinetic friction.
- Gravity is relatively weaker, is a result of mass and acts on all things that have mass. Magnetic force is relatively stronger, is a result of interaction of photons(charged particles) and acts on things that contain iron(ferrous) or have a charge on them.
Answer:
1.I)Non contact force is a force which on an object without coming physically in contact with.
II.The most familiar example of a non contact force is weight.
III.All four interactions are non contact forces.
Contact force
I)A contact force is a force applied to a body by another body.
II. Examples of contact forces are - Biological force, muscular force
III. Thus a contact force is a force that requires contact to occur.
2)
The friction force is the force exerted by a surface as an object moves across it or makes an effort to move across it. There are at least two types of friction force - sliding and static friction. Though it is not always the case, the friction force often opposes the motion of an object.
The force which is applied on an object or a body is called applied force.
3)Gravity is relatively weaker, is a result of mass and acts on all things that have mass. Magnetic force is relatively stronger, is a result of interaction of photons(charged particles) and acts on things that contain iron(ferrous) or have a charge on them.
4) gravitation is the force between any two objects in the universe.
5) electrostatic force is the force between two electrically charged objects.
Please mark it as brainliest answer