Tanveer, we just read your Physics project: Dilemma in Tanguar Hoar. Four words - excellent description and figure. It just explained everything as simply as possible in such an interesting way with a diagram from real life which really helped us to grasp the concept. Well done! Here in Tanveer full answer and you can click on the following screenshot to see all details: https://drive.google.com/file/d/1toriTQlwUmQKC4sh09gGu07anD_-MK2k/view?usp=sharing