Q. A rubber cord catapult has cross-sectional area 25mm2 and initial length of rubber cord is 10cm. It is stretched to 5cm. and then released to project a missile of mass 5gm. Taking Yrubber = 5 x 108 N/m2, find the velocity ...
1. If x,y and z are real numbers such that (x - 3)2 + (y - 4)2 + (z - 5)2 = 0. Then, x + y + z = (A) -12 (B) 0 (C) 8 (D) 12 Please do show the steps..! ...
