1. Ball A has a mass of 10 kg and moving to the East. Ball B also has a mass of 10 kg and moving to the west. Once they collide, they bounce off each
other with the same speed. What type of collision is this considered?
Inelastic
O Non-Elastic
Perfectly Inelastic
Elastic

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.

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;