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Report | Harminder singh asks : what is the significance of complex nos. and why they are not in 3-d options a.it is the point out of the given plane b. it is an imaginary pt. just to confuse the students c. it is just a mathod to understand vectors in a different way d. it is just root of -1 and nothing else |
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 |
Report | Yashwanth sai asks : If a person walks away from a mirror with a speed of 3m/s then with what velocity is he moving away in the mirror if the mirror is a plane mirror??? |
Report | Sandeep kumar reddy padala asks : Given 3 lines in the plane such that the points of intersection form a triangle with sides of length 20, 20 and 30, the number of points equidistant from all the 3 lines is |
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