(01.04 HC)
The table shows the potential energy and kinetic energy of a skier at two different
positions on a hill.
Position and Energy
Position (above ground) Kinetic Energy Potential Energy
100 meters
O units 50,000 units
60 meters
30,000 units
What is the kinetic energy of the skier at a height of 60 meters above ground?
20,000 units, because total energy remains unchanged
80,000 units, because total energy remains unchanged
20,000 units, because total energy of the skier decreases
80,000 units, because total energy of the skier decreases

what is the actual question though?

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.