Question

Which of the following is true in the case of contact forces
a) They donot possess field
b) They have definite magnitude at the surface of the contact
c) They change their magnitude depending on distance and parameters
d) both a and b​

Answer 1

Answer:

both a and b is the correct answer

Answer 2

Both a and b is the correct option for the statement. (Option d)

• Contact forces are the forces that involve contact between two objects or bodies.
• Here, one object applies the force on another object when came in contact, and the object on which the force is applied experiences a change in motion that is it may set to motion or it may come to rest.
• They do not possess any field, unlike gravitational force which has a field.
• Contact force is only applied when two bodies come into contact.
• They have a definite magnitude at the surface of contact.