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Engineering mechanics Dynamics Division 1 Tutorial 12 Tutorial answer sheets should be submitted in tutorial class Monday itself Data not given can be assumed Text books can be referred 1 A slender rod of length l is pivoted about a point C located at a distance b from its center G It is released from rest in a horizontal position and swings freely Determine a the distance b for which the angular velocity of the rod as it passes through a vertical position is maximum b the corresponding values of its angular velocity fig 1 5 marks 2 A 30 kg uniform circular plate of radius r is supported by a ball and socket joint at point A and is at rest in the vertical xy plane when a bullet with a mass of 15 g is fired with the velocity v0 210 m s k and hits the plate at point C Knowing that r 400 mm and h 700 mm determine a the angular velocity of the plate immediately after the bullet becomes embedded b the impulsive reaction at point A assuming that the bullet becomes embedded in 1 1 ms fig 2 5 marks 3 The uniform thin 2 3 kg disk spins at a constant rate of 6 rad s about an axis Continue to download »