Question

10 it is a convention for modeling forces on a single subsystem or object.
a elastic limit
b breaking point
c peak force
d free body diagram
e potential energy
f air resistance
g friction

Explanation:

A free - body diagram is a convention used to model all the forces acting on a single subsystem or object. It shows the magnitude and direction of forces. Elastic limit is related to the maximum stress a material can withstand while still being elastic. Breaking point is when a material fails. Peak force is the maximum force in a situation. Potential energy is stored energy. Air resistance and friction are types of forces but not the convention for modeling forces on an object.

Answer:

D. free body diagram