are in the same vertical plane. At an instant after the disc is released, angles made by the cord with the ceiling are 0= 67 and o= 53 and angular velocity of the disc is o = 5.0 rad / s. Find magnitude of velocity of the centre of the disc at this instant. Sec: Jr.Super60 Space for Rough Work Page 14 Sri Chaitanya IIT Academy 48. 19-09-2020 Jr.Super60(In Com)_Jee-Main_UTM-06_Q.P A uniform rod of length ( is released from rest from the position shown in the figure. The acceleration due to gravity is g. There is no friction at any surface. Find the initial angular acceleration of the rod. l =1 m, g=10ms (Take 3 =1.73) 5.19 30 A uniform disc of mass m and radius R is projected horizontally with velocity (18 ms) on a rough horizontal floor, so that it starts off with a purely sliding 49. motion at t= 0. After t, seconds, it acquires a purely rolling motion as shown in figure. Calculate the velocity of the centre of mass of the disc at t, 12 Vo t = 0 t = to 50. A disc of mass m and radius R is placed over a plank of same mass m. There is sufficient friction between the disc and plank to prevent slipping. A force F is applied at the centre of the disc. Then, the Acceleration of the plank is F Find Km the value of K. F 4 Smooth 15/19 Sec: Jr.Super60 Space for Rough Work Page 15 48,49,50 Sri Chaitanya IIT Academy CHEMISTRY 19-09-2020_Jr.Super60(In Com)_Jee-Main_UTM-06_Q.P Max Marks: 100 (SINGLE CORRECT ANSWER TYPE)