Mechanical Engineering - Engineering Mechanics
Exercise : Engineering Mechanics - Section 2
16.
If a number of forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium.
17.
The periodic time of a particle with simple harmonic motion is __________ proportional to the angular velocity.
18.
The motion of a particle round a fixed axis is
19.
A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is
m1/m2
m1.g sin α
m1.m2/m1+m2
20.
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
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