Question

select the correct answer.
which example possesses mechanical potential energy?
a. a taut guitar string
b. an oscillating pendulum
c. a roller coaster ride
d. a child on a swing
e. a speeding car

Explanation:

Mechanical potential energy is stored energy due to position or shape. A taut guitar string has elastic potential energy (stored due to its stretched shape). An oscillating pendulum, roller coaster ride, child on a swing, and speeding car involve kinetic energy (motion) or a mix of kinetic and potential, but a taut string's energy is purely potential from its tension/shape.

Answer:

A. a taut guitar string