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A boy revolves two balls each of mass 10...

A boy revolves two balls each of mass 100 gm and tied with strings of 1 metre length each in horizontal circle as shown in figure. If the speed of outermost ball is 6 m/s , then tension in string-1 is-

A

2.4 N

B

2.7 N

C

2 N

D

1.2 N

Text Solution

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The correct Answer is:
B
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MOTION-CIRCULAR MOTION-EXERCISE -1
  1. A string of length 1 m is fixed at one end and carries a mass of 100 g...

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  2. A particle is acted upon by a force of constant magnitude which is alw...

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  3. A particle is acted upon by a constant force always normal to the dire...

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  4. A chain of 125 links is 1.25 m long and has a mass of 2 kg with the en...

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  5. A particle P is moving in a circle of radius r with a uniform speed v....

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  6. A simple pendulum of length L and mass (bob) M is oscillating in a pla...

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  7. A mass of 2.9 kg, is suspended from a string of length 50 cm, and is a...

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  8. A car is moving with speed 30m//sec on a circular path of radius 500 m...

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  9. A car of mass 1000 kg moves on a circular path with constant speed of ...

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  10. A boy revolves two balls each of mass 100 gm and tied with strings o...

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  11. It mass, speed and radius of the circle of a particle moving uniformly...

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  12. A car while travelling at a speed of 72 km/hr. Passes through a curved...

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  13. A particle is projected so as to just move along a vertical circle of ...

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  14. A small body of mass m slide without friction from the top of a hemisp...

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  15. The roadway of a bridge over a canal is in the form of a circular arc...

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  16. A cyclist is moving on a circular track of radius 80 m with a velocity...

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  17. Keeping the banking angle same , to increase the maximum speed with wh...

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  18. A motor cyclist moving with a velocity of 72 km/hour on a flat road ta...

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  19. A person stands in contact against a wall of cylindrical drum of radiu...

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  20. When the road is dry and the coefficient of friction is mu, the maximu...

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