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A person swims in a river aiming to reach exactly opposite point on the bank of a river. His speed of swimming is 0.5 m/s at an angle 120° with the direction of flow of water. The speed of water in stream is
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- 1.0 m/s
- 0.5 m/s
- 0.25 m/s
- 0.43 m/s.
Correct Option: C
Velocity of person v→m = 0.5 m/s
| sin 30° = | ⇒ vw = vm sin 30° | |
| vm |
| ⇒ vw = | = | = 0.25 m / s | ||
| 2 | 2 |
