Question

Melanie gets out of her car at the park. She walks 25 m to the trail entrance.

She jogs around the trail until she reaches a pond, where she stops briefly.
She then continues to follow the trail around the pond. Which reference point
should be used to describe her motion?
A. Her car
B. The trail entrance
C. The pond
D. The trail

Answer 1

The reference point that should be used to describe Melanie's motion is the pond.

Step-by-step explanation:

The reference point that should be used to describe Melanie's motion is C. The pond.

When Melanie walks 25 m to the trail entrance, this is her initial position. As she jogs around the trail, the trail entrance becomes her reference point. However, when she reaches the pond and stops briefly, the pond becomes her new reference point. The motion is then described relative to the pond.