Selection of the correct equation to use is nicely illustrated (avoiding DeltaY). Presenting 2 solutions helps us with the flexibility of approach. Polite requests: beginners should write out Velocity quantities with full units of measure to make sure their algebra gives a consistent result. Also prove to beginners why t1 & t2 are equal!
Selection of the correct equation to use is nicely illustrated (avoiding DeltaY). Presenting 2 solutions helps us with the flexibility of approach. Polite requests: beginners should write out Velocity quantities with full units of measure to make sure their algebra gives a consistent result. Also prove to beginners why t1 & t2 are equal!