physics
Dynamics is the study of relationships that exist between forces and the motion of objects.
Dynamics is the study of both motion and forces together. Newton defined the fundamental laws which govern dynamics in physics in his second law of motion.
Aerodynamics.
A+ aerodynamics
Kinematics is the study of motions Kinetics is the study of forces
The study of the forces exerted by air on a moving object is officially called aerodynamics.
Mechanical engineering usually deals with forces and their effects on materials. Forces are vectors and so, to study their effects you need to use vector calculus.
Physics
physics
Both physicists and engineers who are investigating the field of mechanics study motion, forces and energy, and the effect of these on matter.
Dynamics is the study of relationships that exist between forces and the motion of objects.
They need to study how stresses and other forces will act in structures and trigonometry is essential for studying these.
Geologists study the Earths surface
seismology or meteorology.
Tectonophysicists study the structure of the eart's crust and forces that shape the crust.
Geophysics (geology and physics).