Question

hi friendss... explain friction, force and
amplitude... ​

Answer 1

Answer:

1. Friction is a dissipative force responsible for loss of energy.

The main reason for presence of friction is due to intermolecular electromagnetic forces.

Friction depends only on the types of surfaces in contact and the normal reaction.

2. Force is simply a push or a pull.

It is a measure of change in momentum of a body.

Using differentiation, we can say that

F = d(P)/dt ,

where "P" is the momentum change and "t" is time period.

3. Amplitude is the maximum displacement or disturbance of a body performing oscillatory motion.

It is often denoted by "A".

Answer 2

Answer:

friction is force that resist the motion of a body

force is product of mass and acceleration

The amplitude of a periodic variable is a measure of its change over a single period.