Multiple Choice Questions[ Each Question has only one point] 1. Two forces 3N and 2N at an angle 0 such that resultant R. The first force is now increased to 6 N and the resultant become 2R. The value of 0 is A. 90 B. 120 C. 30 D. 60 2. If the sum of two unit vectors is a unit vector, then magnitude of difference is A. 1/V2 B. V5 C. V2 D. V3 3. A vector of magnitude 20 is added to a vector of magnitude 40. The magnitude of their sum might be? A. 50 B. 15 C. 10 D. 5 4. Which one of the choices below represents the preferred practice regarding significant figures when multiplying the following: 10.5 x 8.8 x 3.14? A. 290.1 B. 300 C. 290 D. 290.136 5. Is it possible for an object moving around a circular path to have both centripetal and tangential acceleration? A. Yes. this is possible if the speed is changing. B. No, because then the path would not be a circle. C. Nc. . an object can only have one or the other at any given time. D. Yes, this is possible if the speed is constant. - 2 + 1 Booklet Code 03 Collage of Natural Computetional Science Department of Physios Diversity of y of Gonda