The digram in fig. 7.12 shows the displacement time graph of a vibrating body. (i) Name the kind of vibrations.

The vibrating body is showing the damped vibration as in the diagram the amplitude goes on decreasing with increasing time. Damped vibrations are the periodic vibrations of decreasing amplitude in the presence of resistive force. The amplitude of motion decreases due to the friction (or resistive) force which the surrounding medium exerts on the body vibrating it. Due to this resistive force, the vibrating body continuously loses its energy in doing work against the force of friction and so its amplitude gradually decreases.

The digram in fig. 7.12 shows the displacement time graph of a vibrating body. (i) Give one example of such vibrations.

Vibration damping is a term that is used in industrial, electronic and ergonomic applications when there is a need to reduce the amount of energy that is produced by the system. Normally engineers try to address and reduce this energy at its source, so the disturbing force is not at or near a natural frequency. This will ensure that resonance does not occur. Sometimes this is not possible for many reasons, so problems will usually be controlled with a vibration damper. Usually when a good vibration damper is added, the energy that is left over is removed and converted to a small amount of heat which is referred to as the swallowed energy.

The digram in fig. 7.12 shows the displacement time graph of a vibrating body. (iii) Why is the amplitude of vibrations gradually decreasing.

If the total mechanical energy of an oscillating body were conserved, the system would oscillate indefinitely with the same amplitude. In any real situation, however, there are always non-conservative forces such as friction or drag forces present. These dissipative forces decrease the system's total mechanical energy and can be either internal or external to the system. The amplitude will gradually decrease, and the oscillations will die out.

The digram in fig. 7.12 shows the displacement time graph of a vibrating body. (iv) What happens to the vibrations of the body after some time.

The time now in figure shows the displacement time graph of A vibrating body what happens in the body after sometimes I can see vibrations upload vibration in which we can see here the amplitude of the oscillations are decreasing explain tapping forces with a kind of resistance of frictional forces from the surrounding medium of the vibrating body due to which year release of the vibration eventually did you, so we can see hear and see what happens after sometime agency jobs after sometime Institute of the vibrations become zero. Amplitude gradually decreases amplitude of the vibrations gradually decrease finally when the let se amplitude becomes zero in that case we can see here body final list of body does not my grades and all this answer