Isaac Newton; definition of force; fundamental forces in nature; Newton's first law of motion defined; definition of inertia; inertial reference frames.

Isaac Newton; definition of force; fundamental forces in nature; Newton's first law of motion defined; definition of inertia; inertial reference frames.

Method for solving static equilibrium problems by drawing all relevant objects and forces.

Newton's first law defined; Newton's second law defined (F = m*a); Newton's third law defined; inertial reference frames defined.

Newton's three laws of motion defined with a sentence each.

Definition of inertial mass; standard kilogram; definition of momentum (p = m*v).

Definition of a reference frame; relative and relatively inertial reference frames; law of addition of velocities, with example problem; acceleration in relatively inertial reference frames; principle of relativity; tension in a massless rope; equations of motion, with special cases; constraint conditions in pulley systems.

Static equilibrium experiment setup and procedure.

Two conditions for static equilibrium; step-by-step problem solving strategy for static equilibrium problems; torque sign convention.

Analysis of forces and torques acting on a forearm supporting a mass.

Solution (PDF)^#

Analysis of forces and torques acting on a beam suspended from a wall by a cable.

Solution (PDF)^#

Analysis of forces and torques acting on an ankle of a crouching person.

Solution (PDF)^#

Forces acting on a suspended rope and on a rope wraped around a capstan.

Solution (PDF)^#

Forces and torques acting on the knee of a crouching man.

Solution (PDF)^#

4-part problem; finding force for given acceleration; finding velocity at given time; balancing force to make a = 0. Solutions are given below each problem.

3-part problem; force and acceleration on the block and force on balloon from wind. Solutions are given below each problem.

4-part problem; free-body diagram and tension while hanging; speed and tension after one rope is cut. Solutions are given below each problem.

Net force on an object resulting from three independent forces.

Solution (PDF)

Forces acting on a stationary block.

Solution (PDF)

Forces and torques acting on a person doing a pushup.

Solution (PDF)

Forces and torques acting on a plank holding a mass of bricks and supported by cables.

Solution (PDF)

Forces and torques acting on a plank leaning against a wall.

Solution (PDF)

Finding tension in Achilles tendon, angle of leg with vertical, and force on tibia.

Solution (PDF)

Forces and torques acting on an extended arm.

Solution (PDF)

Forces and torques acting on the back of a bending person.

Solution (PDF)^#

5-part problem involving Hooke's Law, friction, and conservation of energy.

Solution (PDF)