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A particle moves in the x-y plane with t...

A particle moves in the x-y plane with the velocity `bar(v)=ahati-bthatj`. At the instant `t=asqrt3//b` the magnitude of tangential, normal and total acceleration are _&_.

A

b

B

a

C

`b//a`

D

`sqrt(a^(2)+b^(2))`

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The correct Answer is:
A
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MOTION-KINEMATICS-EXERCISE 1 OBJECTIVE PROBLEMS
  1. A particle starts moving along the x-axis from t=0, its position varyi...

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  2. A particle starts moving along the x-axis from t=0, its position varyi...

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  3. A particle moves in the x-y plane with the velocity bar(v)=ahati-bthat...

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  4. A particle moving in a straight line has velocity-displacement equatio...

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  5. The velocity of a body depends on time according to the equative v = 2...

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  6. Starting from rest a particle moves in a straight line with accelerati...

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  7. A particle moves along the positive branch of the curve y = (x^(2))/(2...

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  8. The motion of a body falling from rest in a resting medium is describe...

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  9. A street car moves rectilinearly from station A to the next station B ...

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  10. The speed of a body moving on a straight track varies according to v =...

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  11. A particle moving along x-axis has acceleration f, at time t, given by...

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  12. The horizontal and vertical distances travelled by a particle in time ...

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  13. A body is thrown with a velocity of 9.8 m//s making an angle of 30^(@)...

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  14. A projectile thrown with a speed v at an angle theta has a range R on...

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  15. In a projectile motion the velocity

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  16. Two projectiles A and B are projected with an angle of projection 15^(...

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  17. A ball is thrown upwards and returns to the ground describing a parabo...

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  18. The angle of projection of a body is 15^(@).. The other angle for whic...

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  19. A stone is thrown at an angle of 45^(@) to the horizontal with kinetic...

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  20. The maximum range of a projectile is 22 m. When it is thrown at an ang...

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