A pendulum is raised to a certain height and released from point A, as shown in the image below. At its release, the pendulum is also given an initial
velocity of 14 m/s. Assuming that the effects of friction and air resistance
can be ignored, what will be the maximum height that the pendulum can
reach – that is, what is the height at point B? (Recall that g= 9.8 m/s2)

e) none of the above answers are correct

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.