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Ok, I copied my physics question from the board and I'm trying to solve it but I can't read my writing for one of the numbers...

I'm not sure if it was :The ship is travelling north with a speed of 48 metres/second OR 4.8 metres/second.

1. A flea jumps from a mouse with a velocity of 4 m/s (East) relative to the mouse. The mouse is walking on a crate that is being pulled at 2 m/s (East 20 degrees North) across the ship. The mouse is walking 1.5 m/s (West 30 degrees South) across the crate. The ship is travelling north with a speed of 4.8 m/s OR 48 m/s and there's a current of 1 m/s (West 40 degrees South). What's the velocity of the flea relative to the ground?

Can you guys please tell me which sounds more logical...if the ship was travelling at 4.8 m/s or 48 m/s. Thanks a lot.

If you guys can actually help me in any way solve it too, that would be even greater but maybe that's asking for too much... anyways thanks a lot for any help!

2006-07-12 09:31:38 · 6 answers · asked by A 2 in Science & Mathematics Physics

6 answers

You must be in the chapter on Vectors...actually for a ship to travel at 48 m/s is very fast...it must be 4.8 m/s....

2006-07-12 09:40:24 · answer #1 · answered by johnnyquest 3 · 0 0

4.8 m/s seems to be right In reality the ship can not travel at 48 m/s. Other things you have to figure out. We dont do home work here

2006-07-12 17:58:22 · answer #2 · answered by Knowsitall 2 · 0 0

It must have been 4.8 m/s, since the fastest ship yet built only has a top speed around 50 knots.

The rest of the math I will leave to everybody else.

2006-07-12 16:45:08 · answer #3 · answered by Anonymous · 0 0

4.8 metres/second, I am not going to answer it for you, but I will tell you take all the varations the mouse walking, + the movement of the ship, and +the movement of the current - relation to the flea jumping and you should have the answer.

2006-07-12 16:43:41 · answer #4 · answered by celtic-tides04@sbcglobal.net 2 · 0 0

4.8 m/s translates to 10.7 miles per hour (if I did my math correctly) 48m/s would be 107 mph and that seems too fast so I'd say 4.8 m/s

2006-07-12 16:40:36 · answer #5 · answered by Alan S 7 · 0 0

Isn't it possible to figure both ways and deduce which one is the answer?

2006-07-12 16:37:39 · answer #6 · answered by Anonymous · 0 0

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