A bow is pulled back a distance X and fires an arrow straight up into the air where it reaches a height H the same arrow is now pulled back 3x in a new bow with a string constant half that of the original bow. If this arrow is short straight up into the air how high will it go?

the answer would be a

c. magnitude and direction

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.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.