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FIRST SEMESTER B.TECH DEGREE EXAMINATION, JANUARY 2016
Course Code: BE 100
Course Name: ENGINEERING MECHANICS
Max. Marks: 100 Duration: 3 Hours
PARTA

Answer ALL questions. Each question carries 5 marks

What are the laws of mechanics? State and explain them.
Find the support reactions of a cantilever beam of span 6m carrying a UDL of 6kN/m.

Explain moment of inertia and polar moment of inertia

Explain laws of friction.

Two equal weights ‘W’ are connected by a light (weightless) string passing over a frictionless
pulley. A small weight ‘w’ is added to one side, as shown in figure,
causing that the weight to fall. Determine the acceleration of the
system assuming that the weights start from rest.

Explain instantaneous Centre of rotation.

Explain the terms free vibration and forced vibration

A body is vibrating with simple harmonic motion of amplitude

120mm and frequency Scps. Calculate the maximum velocity and

acceleration of the body.

PART 8
Answer any 2 complete questions each having 10 marks

Block P = 5kg and block Q of mass m kg are

suspended through a chord, which is in

equilibrium as shown in the figure. Determine the
mass of block Q.

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