Specific force (original) (raw)
القوة النوعية أو القوة المعينة يمكن تعريفها بأنها القوة لكل وحدة من الكتلة. القوة النوعية ة يتم حسابها بالمتر لكل ثانية تربيع لذلك فوحدة قياسها تعجلها مرادفة لوحدة قياس التعجيل.
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| dbo:abstract | القوة النوعية أو القوة المعينة يمكن تعريفها بأنها القوة لكل وحدة من الكتلة. القوة النوعية ة يتم حسابها بالمتر لكل ثانية تربيع لذلك فوحدة قياسها تعجلها مرادفة لوحدة قياس التعجيل. (ar) Specific force is defined as the non-gravitational force per unit mass. Specific force (also called g-force and mass-specific force) is measured in meters/second² (m·s−2) which is the units for acceleration. Thus, specific force is not actually a force, but a type of acceleration. However, the (mass-)specific force is not a coordinate-acceleration, but rather a proper acceleration, which is the acceleration relative to free-fall. Forces, specific forces, and proper accelerations are the same in all reference frames, but coordinate accelerations are frame-dependent. For free bodies, the specific force is the cause of, and a measure of, the body's proper acceleration. The g-force acceleration is the same as the specific force. The acceleration of an object free falling towards the earth depends on the reference frame (it disappears in the free-fall frame, also called the inertial frame), but any g-force "acceleration" will be present in all frames. This specific force is zero for freely-falling objects, since gravity acting alone does not produce g-forces or specific forces. Accelerometers on the surface of the Earth measure a constant 9.8 m/s^2 even when they are not accelerating (that is, when they do not undergo coordinate acceleration). This is because accelerometers measure the proper acceleration produced by the g-force exerted by the ground (gravity acting alone never produces g-force or specific force). Accelerometers measure specific force (proper acceleration), which is the acceleration relative to free-fall, not the "standard" acceleration that is relative to a coordinate system. (en) |
| dbo:wikiPageID | 15868806 (xsd:integer) |
| dbo:wikiPageLength | 2833 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1099295364 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Mass dbr:G-force dbr:Proper_acceleration dbr:Acceleration dbr:Force dbr:Hydraulic_engineering dbc:Hydraulic_engineering dbc:Physical_quantities dbr:Accelerometer dbc:Acceleration dbr:Metre_per_second_squared |
| dbp:date | March 2017 (en) |
| dbp:reason | It's not clear at the end if specific force is proper acceleration or not. There's another Wikipedia article talking about proper acceleration (en) |
| dbp:wikiPageUsesTemplate | dbt:Confusing dbt:Reflist dbt:Classicalmechanics-stub |
| dct:subject | dbc:Hydraulic_engineering dbc:Physical_quantities dbc:Acceleration |
| rdf:type | yago:Abstraction100002137 yago:Function113783816 yago:MathematicalRelation113783581 yago:Measure100033615 yago:Relation100031921 yago:WikicatFunctionsAndMappings yago:WikicatPhysicalQuantities |
| rdfs:comment | القوة النوعية أو القوة المعينة يمكن تعريفها بأنها القوة لكل وحدة من الكتلة. القوة النوعية ة يتم حسابها بالمتر لكل ثانية تربيع لذلك فوحدة قياسها تعجلها مرادفة لوحدة قياس التعجيل. (ar) Specific force is defined as the non-gravitational force per unit mass. Specific force (also called g-force and mass-specific force) is measured in meters/second² (m·s−2) which is the units for acceleration. Thus, specific force is not actually a force, but a type of acceleration. However, the (mass-)specific force is not a coordinate-acceleration, but rather a proper acceleration, which is the acceleration relative to free-fall. Forces, specific forces, and proper accelerations are the same in all reference frames, but coordinate accelerations are frame-dependent. For free bodies, the specific force is the cause of, and a measure of, the body's proper acceleration. (en) |
| rdfs:label | قوة نوعية (ar) Specific force (en) |
| owl:sameAs | freebase:Specific force wikidata:Specific force dbpedia-ar:Specific force https://global.dbpedia.org/id/4reHR yago-res:Specific force |
| prov:wasDerivedFrom | wikipedia-en:Specific_force?oldid=1099295364&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Specific_force |
| is dbo:wikiPageWikiLink of | dbr:Index_of_physics_articles_(S) dbr:Inertial_measurement_unit dbr:G-force dbr:Specific_quantity dbr:Acceleration |
| is foaf:primaryTopic of | wikipedia-en:Specific_force |