151. A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is_____________________?

A. 4
B. 6 7i
C. 8TC
D. 8
✅ The correct answer is option C.

158. A car goes round a curve of radius 100 m at 25 m/sec. The angle to the horizontal at which the road must be banked to prevent sideways friction on the car wheels is tan”1 x, where x is (Assume g = 10 m/sec2)_____________________?

A. 3/8
B. 1/2
C. 9/5
D. 5/8
✅ The correct answer is option D.