A 6.0 kg wagon moving right at 3 meters per second on a frictionless path collides and to sticks a 4.0 kg wagon moving left at 12 meters per second. What is the final speed of the wagon?

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.