Question

5 and 6

(iii) F+dp/dt = 0 5.) (a) A point object of mass 10 Kg is rotating about an axis 1 metre away at an angular speed of 10 rad/second. Its moment of inertia about the rotation axis is: (i) 10 Kg -Metre (ii) 100 Kg/Second (iii) 10 Kg-Metre2 (b) Which one of the following equations (using standard nomenclature) is incorrect? (i) v =r o (ii) ac = v2/r (ii) da/dt (c) The moment of inertia of a uniform wheel about its axle does not depend upon its: (i) Diameter (ii) Mass (iii) Distribution of Mass (iv) Speed of Rotation 6.) (a) In equilibrium problems, torques can be calculated about any point: (i) Within the object. (ii) Outside the object. (iii) Within or outside the object. (b) Newton's second law in terms of angular momentum is: (ii)T dL/ dt (iii) t rxF (i) T Ia (c) The minimum number of vectors of unequal magnitudes needed to get a resultant zero vector is: (i) Two (ii) Three (ii) Four (iv) Five 2

Answer 1

0 17 7 . Cebion ji ) U (a) I- mit – (loky) Cami? - [10 kg - 1? ] By Milw= date [(iv) Speed of rotation] 6 WK11) (e) [(l Two) (3) 1st = Ix]