Motion - velocity and acceleration, forces and torques


Change in velocity and time used

Acceleration Units Converter

Convert between units of acceleration

Acceleration and Velocity Equations

Useful equations related to acceleration, average velocity, final velocity and distance traveled

Acceleration of Gravity and Newton's Second Law

Acceleration of gravity and Newton's Second Law - SI and Imperial units

Angular Motion - Power and Torque

Angular velocity and acceleration - power and torque

Average Velocity

Distance traveled vs. time used

Banked Turn

A banked turn is a turn or change of direction in which the vehicle banks or inclines, usually towards the inside of the turn.

Bollard Force

Bollard rope friction - load and effort force in rope

Car - Required Power and Torque

Power, torque, efficiency and wheel force

Car - Traction Force

Adhesion and tractive effort

Car Acceleration

Calculate acceleration of car

Centripetal and Centrifugal Force - Acceleration

Centripetal and centrifugal acceleration - forces due to circular motion

Flywheel Kinetic Energy

Kinetic energy stored in a flywheel - moment of inertia


Force - Newton's third law and acceleration

Force Acting on Body Moving on Inclined Plane

Required force to move a body up an inclined plane

Formulas of Motion - Linear and Circular

Linear and angular (rotation) acceleration, velocity, speed and distance

Impact Force

Impact forces acts on falling objects hitting ground, crashing cars and similar

Impulse and Impulse Force

Forces acting a very short time are called impulse forces

Kinetic Energy

Kinetic energy of a rigid body is the energy possessed by its motion

Lifting Wheels

Lifting wheels - loads and effort force

Moment of Inertia

Moment of Inertia (Mass Moment of Inertia) depends on the mass of the object, its shape and its relative point of rotation - Radius of Gyration

Movement Ratio

Machines and movement ratio (velocity ratio)


A simple pendulum oscillates in the vertical plane due to gravity

Potential Energy

Hydropower - elevation and potential energy


Pulleys, blocks and tackles

Range of a Projectile

Motion in two dimensions - calculate the range of a projectile

Rolling Resistance

Rolling friction and rolling resistance

Rotating Bodies - Stress

Stress in rotating disc and ring bodies

Universal Gravitational Law

The gravitational attraction between two objects depends on the mass of the objects and the distance between them

Vector Addition

Online vector calculator - add vectors with different magnitude and direction


Effort force to raise a load


Work done is the product of applied force and distance

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