Past Year Questions: Translational And Rotational Motion Notes | EduRev

Engineering Mechanics

Mechanical Engineering : Past Year Questions: Translational And Rotational Motion Notes | EduRev

The document Past Year Questions: Translational And Rotational Motion Notes | EduRev is a part of the Mechanical Engineering Course Engineering Mechanics.
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Question 1:A mobile phone has a small motor with an eccentric mass used for vibrator mode. The location of the eccentric mass on motor with respect to center of gravity (CG) of the mobile and the rest of the dimension of the mobile phone are shown. The mobile is kept on a flat horizontal surface.
Past Year Questions: Translational And Rotational Motion Notes | EduRev
Given in addition that the eccentric mass = 2 grams, eccentricity = 2.19 mm, mass of the mobile = 90 grams, g= 9.81 m/s2. Uniform speed of the motor in RPM for which the mobile will get just lifted off the ground at the end Q is approximately

[2015]

Question 2:A circular solid disc of uniform thickness 20 mm, radius 200 mm and mass 20 kg, is used as a flywheel. If it rotates at 600 rpm, the kinetic energy of the flywheel, in Joules is

[2012]

Question 3:A solid disk of radius r rolls without slipping on a horizontal floor with angular velocity ω and angular acceleration α. The magnitude of the acceleration of the point of contact on the disc is

[2012]

Question 4:A circular disk of a radius R rolls without slipping at a velocity V. The magnitude of the velocity at point P (see figure) is:
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[2008]

Question 5:A rigid body shown in the fig. (a) has a mass of 10 kg. It rotates with a uniform angular velocity w. A balancing mass of 20 kg is attached as shown in fig. (b). The percentage increase in mass moment of inertia as a result of this addition is
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[2004]

Question 6:As shown in figure, a person A is standing at the centre of a rotating platform facing person B who is riding a bicycle, heading East. They relevant speeds and distances are shown in given figure person, a bicycle, heading East. At the instant under consideration, what is the apparent velocity of B as seen by A?
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[1999]

Question 7:A rod of length 1 m is sliding in a corner as shown in figure. At an instant when the rod makes an angle of 60 degrees with the horizontal plane, the velocity of point A on the rod is 1 m/s. The angular velocity of the rod at the instant is
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[1996]

Question 8:A stone of mass m at the end of a string of length l is whirled in a vertical circle at a constant speed. The tension is the string will be maximum when the stone is

[1994]

Question 9:The cylinder shown below rolls without slipping. Toward which of the following points is the acceleration of the point of contact on the cylinder directed?
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[1993]

Question 10:A and B are the end points of a diameter of a disc rolling along a straight line with a counter clockwise angular velocity as shown in figure. Referring to the velocity vectors Past Year Questions: Translational And Rotational Motion Notes | EduRev and Past Year Questions: Translational And Rotational Motion Notes | EduRev shown in the figure
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[1990]

Question 11:A uniform rigid rod of mass M and length L is hinged at one end as shown in the adjacent figure. A force P is applied at a distance of 2L/3 from the hinge so that the rod swings to the right. The horizontal reaction at the hinge is
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[2009]

Question 12:A simple pendulum of length of 5 m, with a bob of mass 1 kg, is in simple harmonic motion. As it passes through its mean position, the bob has a speed of 5 m/s. The net force on the bob at the mean position is

[2005]

Question 13:The time variation of the position of a particle in rectilinear motion is given by x = 2t3 + t2 + 2t. If v is the velocity and a is the acceleration of the particle in consistent units, the motion started with

[2005]

Question 14:A car moving with uniform acceleration covers 450 m in a 5 second interval, and covers 700 m in the next 5 second interval. The acceleration of the car is

[1998]

Question 15:AB and CD are two uniform and identical bars of mass 10 kg each, as shown. The hinges at/A and B are frictionless. The assembly is released from rest and motion occurs in the vertical plane. At the instant that the hinge B passes the point B, the angle between the two bars will be
Past Year Questions: Translational And Rotational Motion Notes | EduRev

[1996]


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