A man can swim at a speed of 3 km/h in still water. He wants t cross a 500 m wide river flowing at 2 km/h. He flow at an angle of 120 with the river flow while swimming. A. Find the time he takes to cross the river. b.At what point on the opposite bank will he arrive?

Explanation

To solve the problem, we will break it down into two parts as requested:

### Part A: Find the time taken to cross the river.

1. **Identify the speeds involved**:
- Speed of the swimmer in still water: \( v_s = 3 \, \text{km/h} \)
- Speed of the river current: \( v_r = 2 \, \text{km/h} \)
- Width of the river: \( d = 500 \, \text{m} = 0.5 \, \text{km} \)
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