What is mechanical energy?

it is the energy found in electrons

it is the energy of motion

it is all stored energy

it is the sum of the kinetic and potential energies of an object

It is the sum of the kinetic and potential energies of an object

Hope this is helpful :)

tube or goog will be great resources to find the answer to the question that you're asking

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.