How do you measure instantaneous speed? `(AS_(1))`

You are given a 2 mu F parallel plate capacitor. How would you establish an instantaneous displacement current of 1mA in the space between its plates ?

What is kinetic energy ? Derive an expression for the kinetic energy of a body of mass 'm' moving at a speed 'v'. (AS_(1))

What do you understand by a sound wave? (AS_1)

Very often you must have seen traffic police stopping motorists or scooter drivers who drive fast and fine them. Does fine for speeding depend on average speed or instantaneous speed? Explain.

Assertion: In general |Displacement| le distance. Reason: The instantaneous speed is equal to the magnitude of the instantaneous velocity,

In Exercises 3.13 and 3.14, we have carefully distinguished between average speed and magnitude of average velocity. No such distinction is necessary when we consider instantaneous speed and magnitude of velocity. The instantaneous speed is always equal to the magnitude of instantaneous velocity. Why?

The instantaneous speed of a body can be measured:-