A Heavy Sled and a Light Sled,both Moving Horizontally with the Same

question 41

Multiple Choice

A heavy sled and a light sled,both moving horizontally with the same kinetic energy,suddenly slide onto a rough patch of snow and eventually come to a stop.The coefficient of kinetic friction between the sleds and the rough snow is the same for both of them.Which of the following statements about these sleds are correct? (There could be more than one correct choice. )

• A)Both sleds will slide the same distance on the rough snow before stopping.
• B)The heavy sled will slide farther on the rough snow than the light sled.
• C)The light sled will slide farther on the rough snow than the heavy sled.
• D)On the rough snow,the change in kinetic energy will be the same for both sleds.
• E)The friction from the snow will do the same amount of work on both sleds.

---

Definitions:

Earliest Vertebrates

The earliest vertebrates are ancient species that represent the origin of vertebrate animals, including fish, which possess a backbone and are foundational to the evolution of more complex vertebrates.

Jaws

The bony structure in the head of most vertebrates that holds the teeth and is used for biting and chewing.

Chordate Nerve Cord

The Chordate Nerve Cord is a dorsal, hollow nerve cord found in all chordates, including humans, that develops into the spinal cord and brain.

Ventrally

Pertaining to the belly or underside of an animal or organism; the opposite of dorsally, which refers to the back or upper side.