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.Management Sciences
Category: Applied Mechanics and Graphic Statics
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
A system of copianar forces acting on a rigid body can be reduced to________________?
A. one force only
B. one couple only
C. one force and one couple only
D. none of the above
If the given forces P,, P2, P3 and P4 are such that the force polygon does not close, then the system will___________________?
A. be in equilibrium
B. always reduce to a resultant force
C. always reduce to a couple
D. both (A) and (C)
When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are________________?
A. straight line and parabola
B. straight line and circle
C. circle and straight line
D. circle and parabola
Coefficient of friction depends on__________________?
A. nature of surfaces only
B. area of contact only
C. both (A) and (B)
D. none of the above
The torque produced by a force depends on__________________?
1) the magnitude of the force
2) the direction of the force
3) the’point of application of the force relative to origin
The correct answer is?
A. only (1)
B. both (1) and (2)
C. both (1) and (3)
D. all (1), (2) and (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
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