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GATE Prev Year : Engineering Mechanics Test-5
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Question 1
A mass m1 of 100 kg travelling with a uniform velocity of 5 m/s along a line collides with a stationary mass m2 of 1000 kg. After the collision, both the masses travel together with the same velocity. The coefficient of restitution is
Question 2
A small ball of mass 1 kg moving with a velocity of 12 m/s undergoes a direct central impact with a stationary ball of mass 2 kg. The impact is perfectly elastic. The speed (in m/s) of 2 kg mass ball after the impact will be________
Question 3
The figure shows a pair of pin jointed gripper tongs holding an object weighing 2000 N. the coefficient of friction (
) at the gripping surface is 0.1XX is the line of action of the input force and YY is the line of application of gripping force. If the pin joint is assumed to be frictionless, the magnitude of force F required to hold the weight is
) at the gripping surface is 0.1XX is the line of action of the input force and YY is the line of application of gripping force. If the pin joint is assumed to be frictionless, the magnitude of force F required to hold the weight is Question 4
In a particle motion, which option describes the motion of particle A with reference to particle B?
Question 5
For the truss shown in the figure, the forces F1 and F2 are 9 kN and 3 kN, respectively. The force (in kN) in the member QS is
Question 6
A wardrobe (mass 100 kg, height 4 m, width 2 m, depth 1 m), symmetric about the Y-Y axis, stands on a rough level floor as shown in the figure. A force P is applied at mid-height on the wardrobe so as to tip it about point Q without slipping. What are the minimum values of the force (in newton) and the static coefficient of friction µ between the floor and the wardrobe, respectively?
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