test","extracted_subject":"PHYSICS","extracted_chapter":"WORK ENERGY POWER","extracted_topic":"POWER","questionPreviewUrl":"https://cdn.pureessence.tech/question-previews/packed_canvases/canvas_228.png?top_left_x=532&top_left_y=848&width=532&height=288&app=solveeit"},"seo_metadata":{"keywords":[]},"doubt_solver_data":{"concept_summary":[]},"embeddings":[],"is_hidden":false,"_id":"66d23c6370136192204b9bf7","slug":"80-railway-wagons-all-of-same-mass-5-10sup3sup-kg--1","content":"80 railway wagons all of same mass 5 × 10³ kg are pulled by an engine with a force of 4× 10⁵ N. The tension in the coupling between 30^th and 31^st wagon from the engine is:","options":[{"_id":"68a424d17f15af4716cab483","text":"25 × 10⁴ N","sequence":0,"isCorrect":true},{"_id":"68a424d17f15af4716cab484","text":"20 × 10⁴ N","sequence":1,"isCorrect":false},{"_id":"68a424d17f15af4716cab485","text":"32 × 10⁴ N","sequence":2,"isCorrect":false},{"_id":"68a424d17f15af4716cab486","text":"40 × 10⁴ N","sequence":3,"isCorrect":false}],"correct_answer":"25 × 10⁴ N","explanation":"Let mass of a wagon = m\n\n![](https://cdn.pureessence.tech/canvas_121.png?top_left_x=1726&top_left_y=1200&width=300&height=43)\n\nT= \\(\\frac{50m}{80m} \\times F\\) = \\(\\frac{50}{80}F = \\frac{50}{80}(4 \\times 10^{5})\\) =25 × 10⁴N","question_type":"single_choice","appeared_in":[],"created_at":"2024-08-30T21:40:51.252Z","__v":0,"vector_store_id":"7a30dcb8-1cf8-43d7-b392-65ff3b98a288","updated_at":"2024-08-30T21:40:51.252Z","isStarred":false},"params":{"questionSlug":"80-railway-wagons-all-of-same-mass-5-10sup3sup-kg--1"}}]}]]

Question: 80 railway wagons all of same mass 5 × 10<sup>3</sup> kg are pulled by an engine with a force of 4× ...

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