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Report | Anurag asks : AB and CD are two parallel chords of a circle with centre O such that Ab=6 cm and CD=12 cm.The chords are on the same side of the centre and the distance between them is 3 cm.The radius of the circle is? (a) 6 cm (b) 5*2^1/2 cm (c) 7 cm (d) 3*5^1/2 cm |
Report | Anurag asks : In a circle of radius 17cm,two parallel chords are drawn on opposite side of a diameter.The distance between the chords is 23cm.If the length of one chord is 16cm,then the length of the other is:- (a) 34 cm (b) 15 cm (c) 23 cm (d) 30 cm |
Report | Pravin a asks : how to make four parts in a circle by using two parallel lines?????????? |
Report Report | Saish asks : Is it true that linear motion also has angular momentum? Can linear momentum be converted to angular? e.g. If there is a disk hinged at centre. A bullet can be fired at it such that line of motion of the bullet is parallel to plane of the disk. the bullet is fired so that it hits the disk, somewhere above the centre. After collision, the bullet sticks to disk and both undergo circular motion, having nonzero angular momentum. Since no external torque is exerted, angular momentum before and after is conserved. Hence, angular momentum before is not zero, and linear motion has angular momentum. I |
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