Can somebody me with physics : )

number 36

33.75 m

Explanation:

We can first draw a sketch of the velocity-time graph of the skater to better visualise the motion. From the above graph, we can see that the total distance travelled is just the Area of A and B. Hence:

Total Distance Travelled = Area of A + Area of B

= (0.5)(4.5)(5.0) + (4.5)(5.0)

= 33.75m

that would be because of both gravity and friction. so     c

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.