how would you figure out the speed of cart B?

a)0.40m/s

b) 2.5 m/s

c)1.2 m/s

d) 3.6m/s

The following lab set-up consists of two carts on a frictionless surface. Each end of the spring is attached to one of the carts and compressed. The two carts are then held together with a thin wire and are at rest. The mass of Cart A is m and the mass of Cart B is 3.0 m. CART B CART A Wire 3.0 m Spring After the wire is cut, Cart A moves to the left with a velocity of 1.2 m/s. and Cart B moves to the right with an unknown velocity, CART B CART A Cut Wire 3.0 m Spring