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ANY DOUBTS HERE!!!

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halosh92:
PHYSICS AS
could u just explain how to solve this question step by step please?

Jill is swimming across a river which has  constant current of "k m/s". if jill heads directly across the river with speed "v m/s"
find her resultant speed and the angle her path makes with a line directly across the river when
k= 2
v=1
 thx alot ;D

Saladin:
really sorry u guys, my electricity was out, so i cud not ansa.

Saladin:

--- Quote from: halosh92 on April 06, 2010, 07:15:39 pm ---PHYSICS AS
could u just explain how to solve this question step by step please?

Jill is swimming across a river which has  constant current of "k m/s". if jill heads directly across the river with speed "v m/s"
find her resultant speed and the angle her path makes with a line directly across the river when
k= 2
v=1
 thx alot ;D


--- End quote ---

this is a simple trigonometric question.

electricity going again

srry cud not reply

cant scan the thing

will wen i can

thanks


hope u guys dnt mind.

Sue T:
4got 2 mention th answer was b
thanx!

nid404:

--- Quote from: halosh92 on April 06, 2010, 07:15:39 pm ---PHYSICS AS
could u just explain how to solve this question step by step please?

Jill is swimming across a river which has  constant current of "k m/s". if jill heads directly across the river with speed "v m/s"
find her resultant speed and the angle her path makes with a line directly across the river when
k= 2
v=1
 thx alot ;D


--- End quote ---

R= root of k2 + v2
= root of 5

tan theta= k/v=2
theta= 63.43o clockwise  down the stream

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