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

Related Mcqs:

1. 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

2. 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

3. Pick up wrong statement about friction force for dry surfaces. Friction force is________________?

   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

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 mass are_____________________?

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

7. The units of moment of inertia of an area are_______________?

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

8. The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is_________________?

   A. same
   B. double
   C. half
   D. four times
   E. one fourth

9. A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is_________________?

   A. 0°
   B. 30°
   C. 45°
   D. 60°
   E. 90°

10. According to principle of transmissibility of forces, the effect of a force upon a body is_______________?

    A. maximum when it acts at the center of gravity of a body
    B. different at different points in its line of action
    C. the same at every point in its line of action
    D. minimum when it acts at the C.G. of the body
    E. none of the above