Caption: Dynamic friction. Animation of a man using a rope to pull a crate over rough ground, demonstrating the principle of dynamic friction. Static friction is the force that resists motion between two non-moving surfaces. When one of those surfaces is in motion, a different type of friction applies, known as dynamic friction (also called kinetic friction or sliding friction). Arrows on the animation show that the friction acts in the opposite direction to the pulling force. The animation then zooms in to the base of the crate, showing the microscopic roughness of the two surfaces that gives rise to the friction. Friction was studied by Italian physicist Galileo Galilei (1564-1642).

Release details: Model release not required. Property release not required.

Keywords: animated, animation, artwork, box, crate, dynamic, education, educational, equal and opposite reaction, force, forces, friction, frictional, galilean, galileo, galileo galilei, graphic, human, illustration, kinetic, load, male, man, mechanics, microscopic, motion, no-one, nobody, people, person, physical, physics, pull, pulling, rope, rough, roughness, school science, sliding, static, surface, surfaces

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Dynamic friction, animation

K005/5856 Rights Managed

Downloadable master

Duration: 00:00:41

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 1.3G


Capture format: QuickTime Animation

Codec: PNG

Please contact Science Photo Library if you require the original, or other formats.


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