Topics covered: Acceleration field, Euler's equation. 1. Given the importance of Fluid Mechanics in engineering and sciences especially civil, mechanical, and chemical engineering and physics, I decided to share my online video lectures on Fluid Mechanics which I delivered to the 2nd year undergraduates during the COVID19 lockdown in 2020. 2. I have uploaded the complete lectures on my YouTube channel whose link is provided below for everyone’s free access. 3. In all, it is divided into 25 modules whose total duration is less than 45 hours. 4. These modules cover the fundamental concepts and topics in the subject. They are intended to lay a rock-solid foundation in the subject by explaining the concepts clearly with real-life applications for better understanding. 5. Even secondary school science students can significantly benefit from the modules that cover chapters 1 and 2, i.e. Introduction and Fluid Properties respectively.