A. zero
B. maximum
C. minimum
D. unpredictable
Applied Mechanics and Graphic Statics
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
Impulse can be obtained from a_________________?
A. force-displacement diagram
B. force-time diagram
C. velocity-time diagram
D. velocity-displacement diagram
A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is___________________?
A. 1/3
B. 2/3
C. 1/9
D. 8/9
Joule is the unit of__________________?
A. power
B. impulse
C. work
D. momentum
One Joule is equivalent to________________?
A. 9.81 Newton – metre
B. 1 Newton – metre
C. 1 kg wt – metre
D. 1 dyne – metre
A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is___________________?
A. 1/4
B. 1/3
C. 3
D. 4
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then___________________?
1) a force is required to move the body upwards
2) a force is required to move the body downward
3) the body will not be in equilibrium
The correct answer is?
A. only (1)
B. only (2)
C. both (1) and (2)
D. both (1) and (3)
The maximum pull in a cable, carrying a uniformly distributed load and supported at two ends which are at the same level, is at_____________________?
A. supports
B. quarter span
C. mid span
D. none of the above
The unit of rotational inertia of a body in C.G.S system is________________?
A. cm4
B. kg-cm2
C. gm-cm2
D. gm-cm3
