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A stone tied to the end of astring 80 c...

A stone tied to the end of astring 80 cm long is whirled in a horizontal circle with a constant speed . If the stone makes 14 revolutions in 25 s , what is the magnitude and direction of acceleration of the stone?

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The correct Answer is:
`9.9ms^(2)` , along the radius at every point towards the centre .
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NCERT GUJARATI-MOTION IN A PLANE-EXCERCISES
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  4. A cricketer can throw a ball to a maximum horizontal distance of 100 m...

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  5. A stone tied to the end of astring 80 cm long is whirled in a horizon...

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  6. An aircraft executes a horizontal loop of radius 1.00 km with a steady...

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  7. Read each statement below carefully and state , with reasons , if it i...

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  8. The position of a particle is given by r=3.0hati-2.0t^(2)hatj+4.0...

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  9. A particle starts from the origin at t=0 s with a velocity of 10.0hatj...

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  10. hatiandhatj are unit vectors along x - and y- axis respectively . What...

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  11. For any arbitrary motion in space , which of the following relations a...

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  12. Read each statement below acrefully and state , with reasons and exam...

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  13. An aircraft is flying at a height of 3400 m above the ground . If th...

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  14. A very has magnitude and direction . Does it have a location in space...

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  15. A vector has both magnitude and direaction . Does it mean that anythin...

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  16. Can you associate vectors with (a) the length of a wire bent into a lo...

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  17. A bullet fired at an angle of 30^(@) with the horizontal hits the grou...

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  18. A fighter plane flying horizontally at an altitude of 1.5 km with spe...

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  19. A cyclist is riding with a speed of 27 km /h . As he approaches a circ...

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  20. (a) Show that for a projectile the angle between the velocity and the...

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