File:Motorcyclist_in_Midtown_Manhattan-L1002704.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as v, swiftness, rapidness
速度ベクトルの大きさを指す用語
Speed is a measurement of how far an object travels in a given amount of time, expressed as a non-negative number without regard to direction. It matters because it tells us how quickly something is moving, and it's closely related to velocity, which additionally specifies the direction of that motion.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Physical quantity.caption
- Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a given amount of time, while a slow-moving object covers a relatively small amount of distance in the same amount of time.
- Physical quantity.unit
- m/s, m s−1
- Physical quantity.symbols
- v
- Physical quantity.dimension
- L T−1
- Physical quantity.name
- Speed
- Physical quantity.image
- Motorcyclist in Midtown Manhattan-L1002704.jpg
- Physical quantity.image_size
- 250px
via Wikipedia infobox
Wikidata facts
- Subclass of
- time derivative
- Part of
- velocity
Show 6 more facts
- hashtag
- speed
- recommended unit of measurement
- kilometre per hour
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- Commons category
- Speed
- topic's main category
- Category:Velocity
- maintained by WikiProject
- WikiProject Mathematics
Sources (1)
via Wikidata · CC0
Article · 日本語
物理学の運動学における速さ（はやさ、英: speed）は、速度ベクトルの大きさを指す用語である。各時刻の位置が特定できるような何らかの'もの'があって、その'もの'が時間とともに移動していく場合に、その（道のりとしての）移動距離が時間的に増していく変化のすばやさ（変化率）を表す量である。速度が一定の場合は、単位時間あたりの移動距離である。
Abstract from DBpedia / Wikipedia · CC BY-SA
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