Homework Help: Physics

Posted by Nicole on Friday, August 12, 2011 at 5:24pm.

A river flows due East at 0.979 m/s. A boat crosses the river from the South shore to the North shore by maintaining a constant ve-
locity of 12.8 m/s due North relative to the
water. The river is 306 m wide.
What is the velocity of the boat relative to
shore? Answer in units of m/s.

Physics - bobpursley, Friday, August 12, 2011 at 5:38pm
I visualize a right triangle:

velocity:sqrt(12.8^2+.979^2)

now for velocity, you need an angle;

theta off of the N direction= arctan .979/12.8
Physics - Anonymous, Monday, September 19, 2011 at 1:58pm
ur gay.
Physics - anonymous, Friday, November 4, 2011 at 4:25am
idk you tell me...
Physics - Anonymous, Thursday, December 6, 2012 at 2:29pm
.

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