A. 0.1 rad/sec
B. 1 rad/sec
C. 10 rad/sec
D. 100 rad/sec
Related Mcqs:
- The angular speed of a car while taking a circular turn of radius 100m at 36 km/hour, is_______________?
A. 0.1 radian/sec
B. 1 radian/sec
C. 100 radian/sec
D. 1000 radian/sec - A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is___________________?
A. n rpm
B. n/2 rpm
C. n/4 rpm
D. 2n rpm - 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 - If the angular distance, 0 = 2t3 – 3t2, the angular acceleration at t = 1 sec. is__________________?
A. 1 rad/sec2
B. 4 rad/sec2
C. 6 rad/sec2
D. 12 rad/sec2 - The total kinetic energy of a hoop of mass 2 kg and radius 4 m sliding with linear velocity 8 m/sec and angular velocity 5 radian/sec is_________________?
A. 64 J
B. 400 J
C. 464 J
D. 89 J - A hoop of radius 3 m weighs 100 kg. It rolls along a horizontal floor so that at its centre of mass has a speed of 200 mm/sec, . The work required to stop the hoop is______________?
A. 2 J
B. 4 J
C. 6 J
D. 8 J - If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is_____________________?
A. —rad/sec 10
B. —rad/sec 20
C. —rad/sec 30
D. none of the above - A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?
A. 50 J
B. 150 J
C. 200 J
D. 400 J - A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is______________________?
A. 3/4
B. 4/5
C. 5/3
D. 3/5 - Rate of change of angular momentum is equal to_______________?
A. force
B. torque
C. linear momentum
D. impulse
