Applied Mechanics Questions

• ω rad/sec is the angular velocity of a crank whose radius is r. If it makes θ° with inner dead centre and obliquity of the connecting rod l is φ, the velocity v of the piston, is given by the equation
• Two loads of 50 kg and 75 kg are hung at the ends of a rope passing over a smooth pulley shown in below figure. The tension in the string is :
• Kinetic friction may be defined as
• For a particle moving with a simple harrmonic motion, the frequency is
• A stone is whirled in a vertical circle, the tension in the string, is maximum
• From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The c.g. of the remainder shifts from the original position through
• A retarding force on a body does not
• The units of inertia of mass, are
• Total no of instantaneous centres of a machine having n links, is
• A weight of 100 kg is supported by a string whose ends are attached to pegs A and B at the same level shown in below figure. The tension in the string is
• Energy may be defined as
• A block of weight 50 kg is placed on a horizontal plane. When a horizontal force of 18 kg is applied, the block is just on the point of motion. The angle of friction is
• From a circular plate of a diameter 6 cm is cut out a circle whose diameter is equal to the radius of the plate. The C.G. of the remainder from the centre of circular plate is at a distance of
• To double the period of oscillation of a simple pendulum
• A particle executes a simple harmonic motion. While passing through the mean position, the particle possesses
• If α is the angular acceleration of a compound pendulum whose angular displace ment is θ, the frequency of the motion is
• The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed
• The centre of gravity of a trapezoidal dam section whose top width is a, bottom width is b and the vertical side is a, from its vertical face is
• A train weighing 196 tonnes experiences a frictional resistance of per tonne. The speed of the train at the top of a down gradient 1 in 78.4 is 36 km/hour. The speed of the train after running 1 km down the slope, is
• If a particle moves with a uniform angular velocity ω radians/sec along the circumference of a circle of radius r, the equation for the velocity of the particle, is