Give two examples each for a contact force and a force at a distance examples for a contract force
Answers
Example for contact force: Hitting a ball with a bat
Example for non-contact force: Magnetic force
- We know that contact forces can be defined as those kinds of forces in which two bodies need to make a contact with one another in order to exert some force.
- While non-contact forces are exactly the opposite.
- When we hit a ball with a bat then contact is made between both the objects and thus this can be categorized as a contact force.
- While magnetic force will be a non-contact force.
Answer:
a) CONTACT FORCE - Friction force (to work, two rough surfaces must come into contact with one another) and Normal force (for this force to operate the contact of the object with the earth directly or indirectly must be there).
b) NON-CONTACT (DISTANCE) FORCES: Gravitational force and the magnetic force (we have observed magnets to attract and repel one another without making physical contact) (when we jump or when we throw something up earth exerts a force on us called gravity and pulls the thing down even when we are not in contact with earth).
Explanation:
A contact force is any force that occurs as a result of two objects making contact with each other.[1] Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car or kicking a ball are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied to the car by a person, while in the second case the force is delivered in a short impulse.
A non-contact force is a force applied to an object by another body that is not in direct contact with it. Non-contact forces come into play when objects do not have physical contact between them or when a force is applied without any interaction.
#SPJ2