www.mgu.ac.in Engineering Mechanics Model Question Paper : Mahatma Gandhi University

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Name of the Organaisation : Mahatma Gandhi University (mgu.ac.in)
Type of Announcement : Engineering Mechanics Model Question Paper
Home Page : http://www.mgu.ac.in/

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Subject Name : Engineering Mechanics Code .No - EN010 104 Time - 3 Hrs Marks - 100

Part A

1. What are the conditions of equilibrium of rigid bodies?
2. Explain the principle of virtual work
3. Define static indeterminacy
4. Define instantaneous centre of zero velocity
5. State D’Alembert’s principle

Part B

6. State and prove Varignon’s theorem
7. Derive the expression for the centroid of right angled triangle.
8. State laws of dry friction
9. Derive the expression for natural frequency of undamped free vibration.
10. A car of weight 20kN moving at a speed of 0.5m/s to the right collides with a car of weight 35kN which is at rest. If after the collision the second car is observed to move to the right at a speed of 0.3m/s. Determine the coefficient of restitution between the two cars.

Part C

1. A police officer observes a motorist who is approaching at a uniform speed of 80kmph. He, in his patrol car, starts chasing it as it just crosses him. After accelerating for 8seconds at a constant rate, he attains his top speed of 120kmph. How long does it take to overtake the motorist and at what distance
2. A hammer of mass 400kg, falls through a height of 3m on a pile of negligible mass. If it drives the pile 1m into the ground, determine the average resistance of the ground per penetration.
3. A train of mass 250 x103 kg starts from rest and accelerates uniformly to a speed of 81kmph in 20 seconds. The frictional resistance to motion is 20kN. Determine (i) maximum power required and (ii) the power required to maintain speed of 81 kmph.

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I need the solution for following question. Please guys share your answers.

A police officer observes a motorist who is approaching at a uniform speed of 80kmph. He, in his patrol car, starts chasing it as it just crosses him. After accelerating for 8seconds at a constant rate, he attains his top speed of 120kmph. How long does it take to overtake the motorist and at what distance?

[Unregistered]

A police officer observes a motorist who is approaching at a uniform speed of 80kmph. He, in his patrol car, starts chasing it as it just crosses him. After accelerating for 8seconds at a constant rate, he attains his top speed of 120kmph. How long does it take to overtake the motorist and at what distance