85 templates
Free-body diagram templates
Native free-body diagrams for mechanical, structural, and civil engineering. Declare bodies with `at x,y` positions and arbitrary force vectors with magnitudes, colours, and labels. Supports `moment` curved-arrow torques and an optional hatched `surface` line for incline / floor contexts. Renders in a true coordinate system so vectors are physically faithful.
Free-body — block on incline
Classic 30° incline with weight, normal, and friction vectors.
Chemistry & PhysicsFree-body — Atwood machine
Two masses on a frictionless pulley, vectors and tension labelled.
Chemistry & PhysicsFree-body — cantilever beam
Wall-fixed beam with point load and reaction force/moment.
Chemistry & PhysicsFree-body — simple truss joint
Joint analysis at a single pin with three member forces.
Chemistry & PhysicsFree-body — projectile in flight
Projectile mid-flight (gravity only; no air resistance).
Chemistry & PhysicsFree-body — elevator accelerating up
Passenger inside an elevator with apparent weight increase.
Chemistry & PhysicsFree-body — crate being pulled
Crate on a floor with friction and applied force at an angle.
Chemistry & PhysicsFree-body — mass-spring system
Mass on a spring, vertical equilibrium.
Chemistry & PhysicsFree-body — bridge truss reactions
Simple beam with two pin reactions under distributed load.
Chemistry & PhysicsFree-body — car braking
Car decelerating on a flat road with friction and weight.
Chemistry & PhysicsFree-body — door hinge moment
Door pushed at the handle — illustrating torque about hinge.
Chemistry & PhysicsFree-body — rocket at lift-off
Vertical lift-off: thrust > weight, drag included.
Chemistry & PhysicsPhysics — Free-body: car on a banked curve
Normal force, weight and friction for circular motion on a bank.
Chemistry & PhysicsPhysics — Free-body: ladder against a wall
Statics of a leaning ladder with floor and wall reactions.
Chemistry & PhysicsPhysics — Free-body: hanging sign (two cables)
Equilibrium of a sign suspended by two symmetric cables.
Chemistry & PhysicsPhysics — Free-body: connected blocks over a pulley
Coupled block-on-table / hanging-mass system with tension and friction.
Chemistry & PhysicsPhysics — Free-body: block sliding down an incline
Weight components, normal force and kinetic friction on a slope.
Chemistry & PhysicsPhysics — Free-body: conical pendulum
Tension and weight providing horizontal centripetal force.
Chemistry & PhysicsPhysics — Free-body: accelerating car
Driving force, drag, weight and road normal on a car.
Chemistry & PhysicsPhysics — Free-body: lever (moments)
A lever balanced about a pivot — principle of moments.
Chemistry & PhysicsPhysics — Free-body: crane jib
A loaded crane jib with cable tension and pivot reaction.
Chemistry & PhysicsPhysics — Free-body: incline + hanging mass
A block on an incline connected over a pulley to a hanging mass.
Chemistry & PhysicsPhysics — Free-body: simply supported beam
A beam on two supports carrying a central point load.
Chemistry & PhysicsPhysics — Free-body: tightrope walker
Weight balanced by tension in two sagging rope segments.
Chemistry & PhysicsPhysics — Free-body: seesaw moments
An unbalanced seesaw illustrating the principle of moments.
Chemistry & PhysicsPhysics — Free-body: wheelbarrow (class-2 lever)
Load between the pivot and effort in a class-2 lever.
Chemistry & PhysicsPhysics — Free-body: block held on an incline
A block kept stationary on a slope by an applied force.
Chemistry & PhysicsPhysics — Free-body: mass on an angled string
A hanging mass pulled aside by a horizontal force.
Chemistry & PhysicsPhysics — Free-body: toboggan on a slope
A sled sliding down a snowy slope with friction.
Chemistry & PhysicsPhysics — Free-body: crate on an accelerating truck
Static friction accelerates a crate with the truck.
Chemistry & PhysicsPhysics — Free-body: aircraft in flight
The four forces on an aeroplane in level flight.
Chemistry & PhysicsPhysics — Free-body: swimmer
Buoyancy, weight, thrust and drag on a swimmer.
Chemistry & PhysicsEngineering — Free-body: column under load
Axial compression of a vertical column.
Chemistry & PhysicsPhysics — Free-body: cable car
A car supported on an inclined cable.
Chemistry & PhysicsPhysics — Free-body: Atwood machine
Two masses over a frictionless pulley sharing one cord tension.
Chemistry & PhysicsPhysics — Free-body: person in a lift
Apparent weight of a person in an accelerating elevator.
Chemistry & PhysicsPhysics — Free-body: mass on a spring
A mass hanging in equilibrium on a vertical spring.
Chemistry & PhysicsPhysics — Free-body: pendulum bob
Forces on a simple pendulum bob at an angle.
Chemistry & PhysicsPhysics — Free-body: stacked blocks
The top block of a stack, with friction from below.
Chemistry & PhysicsPhysics — Free-body: person on a rope
A person standing on a sagging rope or slackline.
Chemistry & PhysicsPhysics — Free-body: crate pushed at an angle
A crate pushed by a downward-angled force.
Chemistry & PhysicsPhysics — Free-body: car on a flat curve
Friction supplies the centripetal force on a flat bend.
Chemistry & PhysicsPhysics — Free-body: lamp on two wires
A lamp held by two wires at different angles.
Chemistry & PhysicsPhysics — Free-body: towed trailer
A trailer pulled by a tow bar along a road.
Chemistry & PhysicsPhysics — Free-body: yo-yo on a string
Weight and string tension on a descending yo-yo.
Chemistry & PhysicsPhysics — Free-body: object on a turntable
Friction provides the centripetal force on a rotating platform.
Chemistry & PhysicsPhysics — Free-body: bungee jumper
At the lowest point, cord tension exceeds weight.
Chemistry & PhysicsPhysics — Free-body: diver in flight
Weight and a small drag on a diver mid-air.
Chemistry & PhysicsPhysics — Free-body: person on a trampoline
At the lowest point the elastic bed force is largest.
Chemistry & PhysicsPhysics — Free-body: floating object
Weight balanced by upthrust on a floating body.
Chemistry & PhysicsPhysics — Free-body: hot-air balloon
Upthrust exceeds weight as the balloon rises against drag.
Chemistry & PhysicsPhysics — Free-body: parachutist (terminal velocity)
At terminal velocity drag exactly balances weight.
Chemistry & PhysicsPhysics — Free-body: block held against a wall
A horizontal push holds a block up by friction.
Chemistry & PhysicsPhysics — Free-body: top of a vertical loop
At the top, gravity and the track both point to the centre.
Chemistry & PhysicsPhysics — Free-body: cyclist on an incline
Driving force against gravity component and drag uphill.
Chemistry & PhysicsPhysics — Free-body: tug of war
One team: rope tension balanced by ground friction.
Chemistry & PhysicsPhysics — Free-body: skier on a slope
Gravity component drives the skier against friction.
Chemistry & PhysicsPhysics — Free-body: bucket at top of a vertical circle
Both weight and base force point inward at the top.
Chemistry & PhysicsPhysics — Free-body: box on an inclined conveyor
Belt friction carries a box up against gravity.
Chemistry & PhysicsPhysics — Free-body: climber in a chimney
Friction on both walls supports the climber's weight.
Chemistry & PhysicsPhysics — Free-body: gymnast on rings
Two ring tensions balance the gymnast's weight.
Chemistry & PhysicsPhysics — Free-body: box on the verge of tipping
The normal force shifts to the leading edge as a box tips.
Chemistry & PhysicsPhysics — Free-body: cylinder rolling down a slope
Friction provides the torque for rolling without slipping.
Chemistry & PhysicsPhysics — Free-body: mass between two springs
Two opposing spring forces on a central mass.
Chemistry & PhysicsPhysics — Free-body: block on a frictionless wedge
Only weight and the perpendicular normal force act.
Chemistry & PhysicsPhysics — Free-body: load on an angled cable
A weight held by an angled cable and a horizontal stay.
Chemistry & PhysicsPhysics — Free-body: block on an accelerating cart
Friction accelerates the block with the cart.
Chemistry & PhysicsPhysics — Free-body: pendulum held to one side
A held pendulum bob in equilibrium at an angle.
Chemistry & PhysicsPhysics — Free-body: mass on a spring on an incline
A spring balances the gravity component on a slope.
Chemistry & PhysicsPhysics — Car on a Banked Curve
Weight, normal force and the centripetal resultant.
Chemistry & PhysicsPhysics — Atwood Machine
Two masses over a pulley; tension and weight on each.
Chemistry & PhysicsPhysics — Block on Incline with Pulley
An incline block linked over a pulley to a hanging mass.
Chemistry & PhysicsPhysics — Pushing a Crate
Applied push, weight, normal force and friction.
Chemistry & PhysicsPhysics — Hanging Sign (Two Cables)
Equilibrium of a sign held by two angled cables.
Chemistry & PhysicsPhysics — Car Braking
Friction and drag oppose the car's motion.
Chemistry & PhysicsPhysics — Simple Pendulum Bob
String tension and weight on a displaced bob.
Chemistry & PhysicsPhysics — Crane Jib Forces
Tie tension, jib compression and the load weight.
Chemistry & PhysicsPhysics — Person in an Accelerating Lift
Apparent weight when the lift accelerates upward.
Chemistry & PhysicsPhysics — Aircraft in Level Flight
Lift, weight, thrust and drag in balance.
Chemistry & PhysicsPhysics — Skydiver at Terminal Velocity
Air resistance balances weight at terminal velocity.
Chemistry & PhysicsPhysics — Beam on Two Supports
Two upward reactions balance the load.
Chemistry & PhysicsPhysics — Ladder Against a Wall
Weight, ground reactions and the wall's normal force.
Chemistry & PhysicsPhysics — Boat Towed at Constant Speed
Tow, drag, upthrust and weight in balance.
Chemistry & PhysicsPhysics — Forces on an Aerofoil
Lift, weight, thrust and drag on a wing.
Chemistry & PhysicsPhysics — Box on a Conveyor Belt
Friction drives the box along with the belt.
Chemistry & Physics