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A boat moves right across a river with v...

A boat moves right across a river with velocity `10Kmh^(-1)` relative to water. The water has a uniform speed of `5.00Kmh^(-1)` relative to the earth. Find the velocity of the boat' relative to an observer standing on either bank. If the width of river is `3.0Km` , find the time it takes the baat to cross it.

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ANURAG MISHRA-DESCRIPTION OF MOTION-Example
  1. A large , heavy box is sliding without friction down a smooth plane o...

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  2. A helicopter is trying to land on a submarine deck which is moving sou...

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  3. A boat moves right across a river with velocity 10Kmh^(-1) relative to...

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  4. If the baat of preceding example travels with same speed relaative to ...

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  5. Wind is blowing in the east direction with a speed of 2m/s. A,. bird w...

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  6. A woman is running through rain at a speed of 5.00 m/s. Rain is fallin...

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  7. A boat has a velocity 4m//s towards east with respect to river is flow...

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  8. To a man running upwards on the hill, the rain appears to fall vertica...

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  9. An aeroplane A is flying horizontally due east at a speed of 400 km//h...

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  10. A man is coming down an incline of angle 30^(@) . When he walks with s...

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  11. ·A pipe which can be swivelled in a vertical plane is mounted on a car...

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  12. A river is flowing with a speed of 1 km h^-1 A swimmer wants to go poi...

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  13. A man wants to reach point B on the opposite bank of a river flowing a...

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  14. A river has a width d. A fisherman in a boat crosses the river tiwce. ...

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  15. An airplane is observed by two persons travelling at 60 km/hour in two...

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  16. The slopes of wind screen of two cars are alpha1=30^@ and alpha2= 15^@...

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  17. A car 2m long and 3m wide is moving at 10m//s when a bullet hits it in...

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  18. An elevator is moving with an upward acceleration a. A coin is dropped...

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  19. A lift is moving with uniform downward acceleration of 2 m//s^(2) . A ...

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  20. Cannon A is located on a plain a distance L from a wall of height H. O...

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