A. centripetal force of earth
B. gravitational pull exerted by the earth
C. forces experienced by body in atmosphere
D. force of attraction experienced by particles
E. gravitational force of attraction towards the center of the earth
Related Mcqs:
- A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to________________?
A. W
B. W sin (a + $)
C. Wtan(a + <|))
D. W\an(a-)
E. Wtana - Center of gravity of a thin hollow cone lies on the axis at a height of ___________________?
A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above - Frictional force encountered after commencement of motion is called ___________________?
A. post friction
B. limiting friction
C. kinematic friction
D. frictional resistance
E. dynamic friction - Effect of a force on a body depends upon ________________?
A. magnitude
B. direction
C. position or line of action
D. all of the above
E. none of the above - 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 - Forces are called coplanar when all of them acting on body lie in __________________?
A. one point
B. one plane
C. different planes
D. perpendicular planes
E. different points - A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly_________________?
A. 38 m
B. 62.5 m
C. 96 m
D. 124 m
E. 240 m - 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 - If a rigid body is in equilibrium under the action of three forces, then _____________________?
A. these forces are equal
B. the lines of action of these forces meet in a point
C. the lines of action of these forces are parallel
D. B. and C. above
E. none of the above - If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be_________________?
A. maximum
B. minimum
C. zero
D. infinity
E. same as the force applied
