Suppose that you are swimming in a river while a friend watches from the shore.

Question

Suppose that you are swimming in a river while a friend watches from the shore. In calm water, you swim at a speed of 1.25 m/s . The river has a current that runs at a speed of 1.00 m/s.

Note that speed is the magnitude of the velocity vector. The velocity vector tells you both how fast something is moving and in which direction it is moving.

What is the resultant velocity vector when you add your swimming velocity and the current velocity?

Consider the two vectors C? and D? , defined as follows:

C? =(2.35,?4.27) and D? =(?1.30,?2.21).

What is the resultant vector R? =C? +D? ?

Give x,y, and z components

Explanation / Answer

swimming plus current = (1.25,1)

C + D = (2.35-1.3, -4.27-2.21) = (1.05, -6.48)

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