Question

2). Explain why sliding Friction is less than static friction ? and also factor's altecting
friction
3). Name the types of contact and non-contact force and explain in one sentence each
type?​

Answer 1

Answer:

Friction comes into play when irregularities present in the surfaces of two objects in contact get interlocked with each other. In sliding, the time given for interlocking is very small. Hence, interlocking is not strong. Therefore, less force is required to overcome this interlocking. Because f this reason, sliding friction is less than static friction.

Explanation:

HI this is shreshthta

Answer 2

Answer:

For a given two surface, sliding friction is slightly lesser than that of the static friction because it is easy to move the object which already in motion than the object which is at rest.

What are contact and noncontact force give one example of each?

Difference between Contact and Non-Contact Forces

Contact forces Non-contact force

There is no field linked with the contact force. There is always a field linked with non-contact force.

The frictional force is an example of a contact force. Gravitational force is an example of a non-contact force.