Question

An athlete crosses a 28 m wide river by swimming perpendicular to the water current at a speed of 0.42 m/s relative to the water. They reach the opposite side at a distance 48 m downstream from their starting point. How fast is the water in the river flowing with respect to the ground? \text{m/s} Hint: Review 2d kinematics problem solving in lecture notes or in Chapter 3 of the textbook. You can calculate the time it takes to cross the river from the information given. The swimmer drifts downstream over that time. What is the speed of the swimmer with respect to a friend at rest on the ground? \text{m/s}

          An athlete crosses a 28 m wide river by swimming perpendicular to the water current at a speed of
0.42 m/s relative to the water. They reach the opposite side at a distance 48 m downstream from their
starting point.
How fast is the water in the river flowing with respect to the ground?
\text{m/s}
Hint: Review 2d kinematics problem solving in lecture notes or in Chapter 3 of the textbook. You can
calculate the time it takes to cross the river from the information given. The swimmer drifts downstream
over that time.
What is the speed of the swimmer with respect to a friend at rest on the ground?
\text{m/s}

An athlete crosses a 28 m wide river by swimming perpendicular to the water current at a speed of
0.42 m/s relative to the water. They reach the opposite side at a distance 48 m downstream from their
starting point.
How fast is the water in the river flowing with respect to the ground?
m/s
Hint: Review 2d kinematics problem solving in lecture notes or in Chapter 3 of the textbook. You can
calculate the time it takes to cross the river from the information given. The swimmer drifts downstream
over that time.
What is the speed of the swimmer with respect to a friend at rest on the ground?
m/s

Added by Victor K.

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