Askier with a mass of 50 kg starts from the top of a hill (at rest) at height h above ground. the skier glides down the hill to point a where her velocity is va = 20 m/s and continues up a second hill 8 meters high and back down the other side. her entire trip up to point c is frictionless. at point c she begins stopping and comes to a complete stop 48 meters later at point d. frictionless gliding frictionless gliding va 20 m/s stopping 43 mi.) what is the height h of the first hill? a. h = 12.8 mb. h = 32.5 mc. h = 16.5 md. h = 28.6 me. h = 20.4 mii.) what is the speed of the skier at point b? a. 0 m/sb. 12.8 m/sc. 15.6 m/sd. 18.3 m/se. 20 m/siii) what is the speed of the skier at point c? a. 0 m/sb. 12.8 m/sc. 15.6 m/sd. 18.3 m/se. 20 m/s

unlike poles attract

i don't understand. explain it clearly

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.

higher potential

explanation:

because it is in a high speed so it must move into a of high potential