Let us solve Irodov problem 1.1 on Kinematics.
The problem states:
A motorboat going downstream overcame a raft at a point A; τ=60 min later it turned back and after sometime passed the raft at a distance l=6.0 km from point A. Find the flow velocity assuming the duty of the engine to be constant.
To solve this problem most efficiently we will be using the following concepts:
1. Reference Frames in Kinematics
2. Vectors
Let us now see how to approach the problem by looking at a presentation I created :
(The video is in Bengali)