Imagine and write how the rocket gets accelerated.

Imagine and write about the effects of drinking fluoride water.

A rocket is moving at a speed of 200 ms^(-1) towards a stationary target. While moving , it emits a wave of frequency 1000 Hz.Some of the sound reaching the target gets reflected back to the rocket as an echo.Calculate (1) the frequency of the sound as detected by the target and (2) the frequency of the echo as detected by the rocket.

What is acceleration ? How can we know that a body is accelerating ?

How can you ascertain that the drift is steady and not accelerated?