The two dynamics carts, one single cart of mass 1.0 kg, the other a double cart of mass 2.0 kg, each with essentially frictionless wheels, are in contact and at rest. The compression spring on the single cart is suddenly released, causing the cart to exert an average force of 2.0 N [E] on the double cart for 0.50 s Q4. The velocity of the double cart exactly 0.20 s after the compression spring is released is a) 0.25 cm/? [E] c) 4.0 cm/? [E] b) 1.0 cm/? [E] d) zero e) less than 0.25 c m/? [E], but greater than zero Q5. After the spring is complete and the carts are separated, the net force acting on the single cart is a) 19.6 N [down] c) 19.6 N [up] b) 2.0 N [W] d) zero e) the vector sum of 19.6 N [down] and 2.0 N [W]

The two dynamics carts, one single cart of mass 1.0 kg, the other a double cart of mass 2.0 kg, each with essentially frictionless wheels, are in contact and at rest. The compression spring on the single cart is suddenly released, causing the cart to exert an average force of 2.0 N [E] on the double cart for 0.50 s Q4. The velocity of the double cart exactly 0.20 s after the compression spring is released is a) 0.25 cm/? [E] c) 4.0 cm/? [E] b) 1.0 cm/? [E] d) zero e) less than 0.25 c m/? [E], but greater than zero Q5. After the spring is complete and the carts are separated, the net force acting on the single cart is a) 19.6 N [down] c) 19.6 N [up] b) 2.0 N [W] d) zero e) the vector sum of 19.6 N [down] and 2.0 N [W]