Boat Crossing a River Problems

Physics Ninja looks at 2 problems involving a boat crossing a river. In Problem 1 we find the distance traveled downstream and in problem 2 we find the angle to point the boat in order to cross the river and land directly across.

[DavidAlexanderJuffe]

Literal lifesaver! Your physics channel is the best!

[ezxd]

At 9:23 why did you choose 500m? Why didn't you choose the path of the boat after it gets pushed since that's the actual path it will take?

[basabidawn]

It's great, simple and easy to understand 👌. Thank you

[paulmale]

It just help me solve my assignment question, thanks very much

[shalrisharam]

You gotta believe me.... It really helped me understand rather than listening to my physics teacher and learning nothing😒
Thank you 🤍

[Mkk-fzys]

in the third problem, can you just calculate the angle using sin?

[mahraalmehrezi]

In problem 3 can we use sin^-1(2/7.5) we would get the same value without the need of using all these steps.

[footballtiktokzone]

Why is everyone hating their physics professors? 🤣. Mine is worst though.

[zeitgeist]

How would I solve a problem similar to problem 2 if I know the velocity of the boat in still water instead of the velocity of the boat relative to the river

[kaveeshshandil]

one thing though, when 2'2 + 7.5'2 and placed in a square root, the answer is 7.762087348 which rounded off two decimal placed is 7.76 but not, 7.75

there were more point where you don't use the calculator value, will that be a problem if we use the calculator value?

[kirkfisher]

The d=vt when the boat is going down the stream wouldn't be the velocity x hypotenuse?

[PazzyRT]

Hey man I have a problem ive asked three different people for help on and I can’t figure it out, it basically asks if you kicked a ball at an angle after a given amount of time has passed, and it has a certain horizontal distance, what was the initial velocity the ball, this ball then lands on a ledge, and you have to calculate its velocity when it lands on that ledge, and then the height of the ledge, basically a projectile launched onto a ledge problem. Great video btw!

[VidanageKarunaratne]

I think this is a resultant velocity problem, not a relative velocity problem.

[Swiftie-du]

thank you man i was wondering wtf to do these kind of questions, ive recently been doing yr 11 physics despite being 2 years underaged and i think i lack the thinking kind of thing so thank you for this video

[Galaxytabalite-nw]

In indian these problems were taught in 11 th standard
And much more tougher these came in JEE advance

[AOA.UNIVERSE]

I thought i saw Physics NAIJA😭😭😭.. i thought it was an African channel for a sec there

[bhaveerathod]

i HATE THESE PROBLEMS going to watch the video hopefully i will walk away as an actual person with a working brain instead of whatever jumbled rotten spinach milkshake is fogging my abilities right now

[Galaxytabalite-nw]

In indian these problems were taught in 11 th standard
And much more tougher these came in JEE advance 3:04

[aasports]

First problem.
Vb, r is actually the hypothenuse in the equation

[SarfoVictoria-fpej]

I don't like these type of questions sir I hate them