please answer.?

Question

give an example showing when instantaneous and average velocity are the same and example showing when they are different? tnx

Answer 1

i can only think of 1 where the instantaneous speed equals average velocity... when an electron jumps from one energy level to another (where there is no transition of speed), and even then its ambiguous as the electron acts part particle, part wave.

The speed of light... theres one ^_^

Answer 2

If you travel a straight line at constant speed, instantaneous velocity at each point along the line is equal to average velocity.

If you travel around a circle at varying speeds but never stopping until you return to the point where you started, your average velocity is zero but the instantaneous velocity was never zero. Average velocity is zero because you have zero net displacement. Instantaneous velocity was always finite and positive (since you never stopped until you got back to the start), and always had a direction tangent to the circular path.