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A ship A is moving westwards with a spee...

A ship A is moving westwards with a speed of `10 km h^(-1)` and a ship B 100 km south of A, is moving northwards with a speed of `10 km h^(-1)` The time after which the distance between them becomes shortest, is

A

0h

B

5h

C

`5 sqrt2 h`

D

`10 sqrt2 h`

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TARGET PUBLICATION-Motion in a plane-Exercise
  1. A particle is moving such that its position coordinates (x, y) are (2...

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  2. Particle A moves along X-axis with a uniform velocity of magnitude 10...

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  3. A ship A is moving westwards with a speed of 10 km h^(-1) and a ship B...

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  4. The speed of swimmer in still water is 20 m/s. The speed of river wate...

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  5. The speed of a projectile at its maximum height is half of its initial...

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  6. Two bodies are thrown with the same velocily al an angle of 30^@ and 6...

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  7. A body projected from the ground reaches a point 'X' in its path after...

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  8. Three projectiles A, B and Care projected at an angle of 30^@, 45^@, 6...

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  9. Two particles are simultaneously projected in the horizontal direction...

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  10. The trajectory of a projectile projected from origin is given by the e...

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  11. A particle is projected with velocity 2sqrt(gh) and at an angle 60^@ t...

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  12. A body projected from the ground reaches a point 'X' in its path after...

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  13. The velocity of a projectile at the initial point A is (2hat i+ 3hat j...

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  14. A projectile is given an initial velocity of hat i+2hatj. The Cartesia...

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  15. A body is projected vertically upwards with a velocity of 10 ms^-1 and...

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  16. The maximum height attained by projectile is increased by 10%, by chan...

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  17. A particle is projected with a velocity v so that its horizontal range...

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  18. A particle moves so that its position vector is given by vec r= cos om...

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  19. The angle between velocity and acceleration of a particle describing u...

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  20. Angular speed of hour hand of a clock in degree per second is

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