1.
the co-effnt of friction us=0.6,uk=0.4 btwn 12kg block and 3kg rod.Find the magnitude of the acceleration of the 12kg block immediately after the wire ab is cut (both the angles=30deg.)
a.5 b.8 c.2.5 d.N.O.D
2.
the radius of the wheel is 60mm.IT is linked to a fixed support D through 2 rods AB & BD.the length of both rods =5m.At an instant the vel. of the centre of disc 30m/s.then
1.The angular vel. of rod AB is?
2.the angular vel of rod BD
3Vel. of pin B is?
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UP 0 DOWN 0 1 1
