Could someone please help me with this kinematics question?:


A swimmer heads directly across a river, swimming at 1.6 m/s relative to the water. She

arrives at a point 40 m downstream from the point directly across the river, which is 80 m

wide.

AWhat is the speed of the river current?

BWhat is the swimmer's speed relative to the shore?

CIn what direction should the swimmer head to arrive at the point directly opposite her

starting point?

DHow long would it take to cross the river swimming in the direction found in (c)?