Trick to convert kilometer per hour to meter per second

Duration: 8 min

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Inside: a video lesson and guided study material.

Module outline

  1. Quantitative Aptitude: Number System, Percentage, Profit and Loss, Ratio and Proportion (Ratios), Average, Time and Work, Speed Time and Distance, Simple Interest and Compound Interest, Mixture and Alligation, Data Interpretation, Permutation and Combination, Probability, Logarithm, Powers and Exponents (Surds and Indices), Age Problems, Divisibility Rules, Partnership, HCF LCM, Algebra, Pipe and Cistern
  2. Logical Reasoning: Series (Number and Letter Series) (Numerical Relations and Reasoning), Analogy, Coding Decoding, Blood Relations, Directions (Direction Test), Syllogisms, Logical Sequence Of Words, Data Sufficiency, Seating Arrangements, Puzzle Solving (Puzzles), Calendar, Clock, Cubes & Dices, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Data Arrangement
  3. English Language: Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Sentence Correction (Error Correction), Sentence Completion (Fill in the blanks), Vocabulary, Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Active Passive Voice (Voice), Direct and Indirect Speech, Cloze Test (Cloze Passage), Tenses, Subject Verb Agreement (Verb Noun Agreement), Preposition, Articles, Conjunction, Adverb
  4. Written English Test: English Writing Ability
  5. Coding: Coding Questions by Yash Sir, C Programming by Yash Sir, Programming in C++, Java, Python for Placements by Yash Sir
  6. Communication Round: Communication Assessment
  7. DBMS (Technical Interview): Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, Relational Calculus, Transaction Management, Concurrency Control, Database Recovery, ORDBMS, Database Security & Authorization, Query Processing & Optimization, Enhanced Data Models, Big Data Systems, NoSQL, Data Warehousing & Mining
  8. SQL (Technical Interview): SQL
  9. Operating Systems (Technical Interview): Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Windows OS, Linux OS, Security, Distributed Systems, Virtual Machines
  10. Computer Networks (Technical Interview): Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Security, Mobile Technology, Cloud Computing and IoT, Cyber and Info Security
  11. OOPs (Technical Interview): Object Oriented Programming (OOPS)
  12. HR Interview: MR & HR Interview Preparation
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video is a lecture on the fundamental concepts of speed, time, and distance, presented by an instructor named Yash Jain. The video begins with a title slide introducing the topic. It then transitions to a whiteboard-style presentation where the instructor explains the core formula S = d/t, defining speed as distance divided by time. The main focus of the lecture is on unit conversions between kilometers per hour (kmph) and meters per second (mps). The instructor provides the key conversion factors: 1 km/hr = 5/18 m/s and 1 m/s = 18/5 km/hr. To make the conversion process easier, he demonstrates a shortcut method. For converting km/hr to m/s, he shows that one can multiply the speed by 5 and then divide by 18. He applies this method to several examples, including 18 km/hr, 36 km/hr, and 54 km/hr, showing the calculations step-by-step. The lecture continues with more complex examples, such as 63 km/hr and 72 km/hr, using a similar approach. The video concludes with a 'Thanks for watching' screen.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a title slide featuring the text 'SPEED, TIME & DISTANCE' over a background image of a car driving on a desert road. This transitions to a presentation slide with the same title, now with the instructor's name, 'By Yash Jain', and a small video feed of the instructor in the bottom right corner. The instructor begins by introducing the topic of speed, time, and distance, and then writes the fundamental formula 'S = d/t' on the screen, explaining that speed is equal to distance divided by time.

  2. 2:00 – 5:00 02:00-05:00

    The lecture focuses on unit conversions. The slide is titled 'UNIT CONVERSIONS (kmph to mps)'. The instructor writes the conversion formulas: '1 km/hr = 5/18 m/s' and '1 m/s = 18/5 km/hr'. He explains that to convert from km/hr to m/s, one multiplies by 5/18. He then demonstrates this with the example of 18 km/hr, writing '18 x 5/18 = 5 m/s'. He repeats this process for 36 km/hr, showing '36 x 5/18 = 10 m/s', and for 54 km/hr, showing '54 x 5/18 = 15 m/s'. He also explains the reverse conversion, from m/s to km/hr, by multiplying by 18/5.

  3. 5:00 – 7:59 05:00-07:59

    The instructor continues with more examples of unit conversion. He presents 63 km/hr and demonstrates a shortcut method: '63 = 54 + 9', so '63 x 5/18 = (54 x 5/18) + (9 x 5/18) = 15 + 2.5 = 17.5 m/s'. He then shows the conversion for 72 km/hr, using the same method: '72 = 18 x 4', so '72 x 5/18 = 4 x 5 = 20 m/s'. The video concludes with a final slide that says 'THANKS FOR WATCHING'.

The video provides a clear and structured lesson on the relationship between speed, time, and distance, with a strong emphasis on practical unit conversion. The instructor begins with the foundational formula S = d/t and then systematically teaches a reliable method for converting between km/hr and m/s. By using a combination of direct formula application and a clever shortcut method for mental calculation, the lecture equips students with efficient tools for solving related problems. The progression from basic examples to more complex ones demonstrates a logical teaching approach, making the concepts accessible for exam preparation.

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