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A body lying initially at point (3,7) st...

A body lying initially at point (3,7) starts moving with a constant acceleration of `4 hati`. Its position after 3s is given by the coordinates

A

(7,3)

B

(7,18)

C

(21,7)

D

(3,7)

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-MOTION IN A PLANE-Assignement section -A Objective (one option is correct)
  1. The resultant of two vectors makes an angle of 60^(@) with one vecto...

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  2. The position vector of an object at any time t is given by 3t^(2) hati...

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  3. A body lying initially at point (3,7) starts moving with a constant ac...

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  4. The initial position of an object at rest is given by 3 hati - 8 hatj....

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  5. If |vecP + vecQ|= | vecP| -|vecQ| , the angle between the vectors ve...

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  6. if |vecP + vecQ| = |vecP| + |vecQ| , the angle between the vectors ...

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  7. if vecP a+ vecQ =vec0 , then which of the following is necessarily t...

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  8. A displacment vector fo magnitude 4 makes an angle 30^(@) with the x-...

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  9. If |vecP + vecQ| = |vecP -vecQ| the angle between vecP and vecQ is

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  10. if vecP +vecQ = vecP -vecQ , then

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  11. At the topmost point of a trajectory, its velocity and acceleration ar...

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  12. Two particles are projected with same speed but at angles of projectio...

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  13. A cricket ball of mass m is hitted at the angle 45^(@) to the horizont...

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  14. The pathe of a projectile is

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  15. Two cyclists cycle along circular tracks of radii R(1) and R(2) at uni...

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  16. Which of the following is not a projectile ?

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  17. The maximum number of rectangualr components in which a vector can be ...

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  18. If a stone projected from ground, takes 4 s to reach the topmost point...

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  19. A projectille covers a horizontal distance of 6 m, when it reaches 10 ...

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  20. An arrow shots from a bow with velocity v at an angle theta with the ...

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