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A ball of mass 0.1kg is suspended by a s...

A ball of mass `0.1kg` is suspended by a string `30 cm` long Keeping the string always taut the ball describe a horizontal circle of radius `15cm` Calculate the angular speed of the ball .

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SL ARORA-Laws of Motion-Exercise
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  2. A force acts for 10 s on a body of mass 10 kg after which the force ce...

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  9. A force of 50N is inclined to the vertical at an angle of 30^(@) Find ...

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  12. A cricket ball of mass 150 kg is moving with a velocity of 12 m//s and...

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  13. A hammer weighing 1 kg moving with the speed of 10ms^(-1) strikes the ...

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  14. A hammer weighing 1 kg moving with the speed of 10ms^(-1) strikes the ...

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  16. Two billiard balls of mass 50 g moving in oppositedirections with spee...

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  17. A machine gun has a mass of 20 kg . It fires 35 g bullets at the rate ...

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  18. A ball of mass 20 gram hits a wall at an angle of 45^(@) with a veloci...

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  19. A glass ball whose mass is 10 g falls from a height of 40 m and reboun...

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  20. A force acting on a body of mass 2 kg varies with time as shown in fig...

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