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.Management Sciences
Category: Applied Mechanics and Graphic Statics
The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then_________________?
0
A. P = R
B. Q = R
C. P = Q
D. None of the above is correct
The diagram showing the point of application and line of action of forces in their plane is called____________________?
A. vector diagram
B. space diagram
C. force diagram
D. funicular diagram
Rate of change of angular momentum is equal to_______________?
A. force
B. torque
C. linear momentum
D. impulse
The angular speed of a car while taking a circular turn of radius 100m at 36 km/hour, is_______________?
A. 0.1 radian/sec
B. 1 radian/sec
C. 100 radian/sec
D. 1000 radian/sec
In a simple harmonic motion, the position of equilibrium is always_________________?
A. stable
B. unstable
C. neutral
D. none of the above
At the instantaneous center, the velocity of the moving lamina at any instant is_________________?
A. zero
B. maximum
C. minimum
D. varying
Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are____________________?
A. 2 m/sec and 2 m/sec
B. 3 m/sec and 2 m/sec
C. 3 m/sec and 3 m/sec
D. 4 m/sec and 6 m/sec
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium if________________?
A. floor is smooth and wall is rough
B. floor is rough and wall is rough
C. both floor and wall are rough
D. both floor and wall are smooth
The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to____________________?
A. log r
B. r
C. r2
D. 1/r
where r is the distance of’the particle from centre of the earth
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