The unit of force in S.I. units is________________?

Related Mcqs:

1. Friction force for dry surfaces. Friction force is________________?

   Pick up wrong statement?
   A. proportional to normal load between the surfaces
   B. dependent on the materials of contact surface
   C. proportional to velocity of sliding
   D. independent of the area of contact surfaces
   E. none of the above is wrong statement

2. The resultant of the following three couples 20 kg force, 0.5 m arm, $ ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be__________________?

   A. 20 kg, – ve sense
   B. 20 kg, + ve sense
   C. 10 kg, + ve sense
   D. 10 kg, – ve sense
   E. 45 kg, + ve sense

3. A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is \i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will____________________?

   A. remain horizontal
   B. slant up towards direction of pull
   C. slant down towards direction of pull
   D. unpredictable
   E. none of the above

4. The unit of power in S.I. units is______________?

   A. newton meter
   B. watt
   C. joule
   D. kilogram meter/sec
   E. pascal per sec

5. The unit of work or energy in S.I. units is_______________?

   A. newton
   B. pascal
   C. kilogram meter
   D. watt
   E. joule

6. The units of moment of inertia of an area are__________________?

   A. kg m2
   B. m4
   C. kg/m2
   D. m3
   E. kg/m4

7. The units of moment of inertia of mass are ________________?

   A. kg m2
   B. m4
   C. kg/m2
   D. kg/m
   E. m2/kg

8. A force acting on a body may_________________?

   A. introduce internal stresses
   B. balance the other forces acting on it
   C. retard its motion
   D. change its motion
   E. all of the above

9. The maximum frictional force which comes into play when a body just begins to slide over another surface is called__________________?

   A. limiting friction
   B. sliding friction
   C. rolling friction
   D. kinematic friction
   E. dynamic friction

10. In the equation of virtual work, following force is neglected_______________________?

    A. reaction of any smooth surface with which the body is in contact
    B. reaction of a rough surface of a body which rolls on it without slipping
    C. reaction at a point or an axis, fixed in space, around which a body is con-strained to turn
    D. all of the above
    E. none of the above