A 6.2-kg bowling ball is thrown straight down a lane at 8.4 m/s and makes a head-on collision with a 1.6 kg bowling pin, initially at rest. After the collision, the bowling ball is moving in the same direction, but has a velocity of only 6.7 m/s. What is the speed of the bowling pin after the collision? (Round your answer to the nearest tenth.)

it has to be b, about 97 percent.

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.