Q.8
Q. 9
In the figure shown a light spring of spring constant 'k' is attached at the ends of two uniform identical rods of mass'm' and length 7' each. The rods can rotate about other ends. They are rotated by same and small angles in opposite direction in the plane of thefigureand released. Neglecting the effect of gravity,findthefrequencyof oscillation ofthe rods.
m,l
In thefigureshown the spring is relaxed:; The spring is eompressed by 2 A and released. Mass m attached with the spring collides with the wall & loses two third ofits kinetic energy & returns, Find the time after which the spring will have maximum compressionfirsttime after releasing. (Neglect Friction)
Q. 10 Two blocks P and Q ofmasses 0.3 kg and 0.4 kg respectively are stuck to each other by some weak glue as shown in thefigure.They hang together at the end of a spring with a spring constant K=200 Nnr 1 . The block Q suddenly fallsfreedue to failure of glue find (i) period of SHM block P (ii) Amplitude ofits SHM (iii) Total energy of oscillation ofthe system
I