A dumbbell consists of two masses a and b

**A dumbbell consists of two**balls `**A` and `B**` of**mass**`m=1` kg and connected by a spring. The whole system is placed on a smooth horizontal surface as shown in the figure. Initially the spring is at its natural length, the ball `**B**` is imparted a velocity `v_(0)=8/(sqrt(7))m//s` in the direction shown.- The center of
**mass**is a point in a system that responds to external forces as if the total**mass**of the system were concentrated at this point. The center of**mass**can be calculated by taking the**masses**you are trying to find the center of**mass**between and multiplying them by their positions. Then, you add these together and divide that by the sum of all the individual**masses**. - A student sits on a freely rotating stool holding
**two dumbbells**, each of**mass 2**.94 kg. When his arms are extended horizontally the**dumbbells**are 0.99 - A dumbbell consists of two balls A and B each of mass m =
**1 kg**and connected by a spring. The whole system is placed on a smooth horizontal surface as shown in the figure. Initially the spring is at its natural length, the ball Oduv000000000000 A B 8 B is imparted a velocity Vo = - m/s in the 77 direction shown.