The angular speed of a car while taking a circular turn of radius 100m at 36 km/hour, is_______________?

Related Mcqs:

1. The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be___________________?

   A. 0.1 rad/sec
   B. 1 rad/sec
   C. 10 rad/sec
   D. 100 rad/sec

2. 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

3. 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

4. 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

5. 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

6. 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

7. The ratio of the speed of a rolling cylinder to the speed of sliding cylinder is_______________?

   A. less than 1
   B. equal to 1
   C. between 1 and 2
   D. greater than 2

8. 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

9. 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

10. A solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is_______________?

    A. (1/3) g sin0
    B. (2/5) g sin 0
    C. (3/7) g sin 0
    D. (5/7) g sin0

    where g is acceleration due to gravity