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A CUBICAL BLOCK OF WOOD OF EDGE 3CM FLOATS IN WATER.THE LOWER SURFACE OF THE CUBE JUST TOUCHES THE FREE END OF A SPRING FIXED AT THE BOTTOM OF THE POT.FIND THE MAXIMUM WEIGHT THAT SHOULD BE KEPT ON THE BLOCK TO PREVENT IT FOM WETTING?K=50N/M AND DENSITY OF WOOD IS 800 KG/M^3

#Physics #Mechanics

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5 Answers

1

Aditya Chatterjee ·2009-05-03 09:15:13

1.824N

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skygirl ·2009-05-03 18:47:43

MAXIMUM WEIGHT THAT SHOULD BE KEPT ON THE BLOCK TO PREVENT ''IT'' FOM WETTING

here 'it' means ?

weight or the block ?

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3

iitimcomin ·2009-05-03 21:01:45

3^3 * (200) + 50(3) = M(10)

1950 = M(10)

M = 195 ....

assumin ' IT ' refers to weight ......

rong stuff!!!!!

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iitimcomin ·2009-05-03 21:02:19

ohh!!!! 3 cm sorry thought it was 3 m ...

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iitimcomin ·2009-05-03 21:03:43

so now it becumz

(150 + 18)10^-2 = M(10)

168 g = answer

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