Question

A standing wave is set up on a string which is fixed at both ends. Between any two consecutive nodes on the string all points act as simple harmonic oscillators, that vibrate with the same:

1)amplitude
2)period
3)energy
4)average speed​

Answer 1

Answer:

• sliding friction is a kind of friction that happened Mere body slides over another body
• rolling friction is a force of friction which comes into play when a body is rolled over another body