Vidyasaarthi

Early accessClass 11–12 · JEE · NEET · every board

A personal teacher for every student in India.

Video lessons that teach the method. Practice that explains your mistakes. Revision that brings back what you’re about to forget. Your board, your language, almost free.

How to get accessSee how it works

Opening through partner schools and coaching centres · The price is shown clearly before anyone pays anything. No ads.

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A personal teacher in your pocket.
  • 25+years teaching JEE & NEET physics
  • 24languages — rolling out, the same lesson in your voice
  • Everysolution reviewed by a teacher
  • 11–12Class · JEE · NEET · every board

How it works

Like having your own teacher beside you.

In a class of a hundred, the quiet student’s doubt goes unasked. Distance, language and cost decide who learns. Vidyasaarthi sits beside every student.

  1. 01

    Watch

    Short video lessons that show the method, not just the answer.

  2. 02

    Practise

    Past JEE, NEET and board questions, with teacher-reviewed solutions.

  3. 03

    Understand your mistake

    See the usual wrong step behind your answer, and why it fails.

  4. 04

    Revise

    A few minutes a day. What is still weak comes back.

Try step 03 · pick any answer

A ball is thrown straight up. Ignore air resistance. At the highest point of its flight —

What each answer tells us:

Answer A · a very common slip

  1. The usual wrong step“The ball has stopped, so nothing is acting on it — the acceleration must be zero too.”
  2. Why it failsAcceleration is how fast the velocity is changing, not how big it is. Just before the top the ball moves up; just after, it moves down — so its velocity is still changing, and gravity is still pulling. If the acceleration really became zero, the ball would stay up there.
  3. The idea to re-readVelocity and acceleration are different quantities — Motion in a Straight Line.

Answer B · correct

At the top the velocity is zero for just an instant — but gravity never switches off. The acceleration stays g (about 9.8 m/s²), pointing down, through the whole flight. That is exactly what turns the ball around.

Answer C · mixing up height and speed

  1. The usual wrong step“It is at its highest point, so it must be at its highest speed.”
  2. Why it failsOn the way up, gravity acts against the motion, so the ball keeps slowing down. It reaches the top because its velocity has fallen to zero. Gravity still acts there, so the acceleration is g, not zero.
  3. The idea to re-readv = u − gt for motion against gravity — Motion in a Straight Line.

Answer D · direction of motion vs direction of acceleration

  1. The usual wrong step“The ball was moving up, so its acceleration must point up.”
  2. Why it failsAcceleration need not point along the motion. Gravity pulls down for the whole flight, on the way up too. That downward acceleration is what slows the ball and turns it around.
  3. The idea to re-readThe direction of acceleration vs the direction of velocity — Motion in a Straight Line.

For all of India

Every board. Every language of India. Every student.

Village or city, any medium, any board — the same lesson, only the voice changes, with key terms in English for the exam. Languages are rolling out step by step. See every language →

One line from a lesson · choose a language

HinglishPhysics · JEE & NEET

Top point par ball ki velocity ek pal ke liye zero ho jaati hai — lekin acceleration tab bhi g hi rehta hai, neeche ki taraf. Isiliye ball wapas neeche aati hai.

Biology · NEET

Mitochondria cell ka woh hissa hai jahan aerobic respiration hota hai — isiliye ise cell ka powerhouse kehte hain.

Hinglish — the way many classrooms really speak, with exam terms in English.
EnglishPhysics · JEE & NEET

At the top, the ball’s velocity becomes zero for an instant — but its acceleration is still g, pointing down. That is why the ball comes back down.

Biology · NEET

Mitochondria are the sites of aerobic respiration — that is why they are called the powerhouse of the cell.

English — the same lesson, the same visuals.
हिन्दीPhysics · JEE & NEET

सबसे ऊँचे बिंदु पर गेंद का वेग (velocity) एक पल के लिए शून्य हो जाता है — लेकिन त्वरण (acceleration) तब भी g ही रहता है, नीचे की ओर। इसीलिए गेंद वापस नीचे आती है।

Biology · NEET

माइटोकॉन्ड्रिया वायवीय श्वसन (aerobic respiration) के स्थल हैं — इसीलिए इन्हें कोशिका का ऊर्जा-घर (powerhouse) कहते हैं।

Hindi — every key term in Hindi and English together.
  • Hinglish
  • English
  • অসমীয়া
  • বাংলা
  • बड़ो
  • डोगरी
  • ગુજરાતી
  • हिन्दी
  • ಕನ್ನಡ
  • کٲشُر
  • कोंकणी
  • मैथिली
  • മലയാളം
  • ꯃꯩꯇꯩꯂꯣꯟ
  • मराठी
  • नेपाली
  • ଓଡ଼ିଆ
  • ਪੰਜਾਬੀ
  • संस्कृतम्
  • ᱥᱟᱱᱛᱟᱲᱤ
  • سنڌي
  • தமிழ்
  • తెలుగు
  • اردو

The founder’s message

Talent is everywhere. Guidance should be too.

Dear students and parents,

For more than twenty-five years I have taught physics. In every batch I saw the same truth: talent is everywhere — in big cities and small towns, in English-medium and Hindi-medium schools. What is not everywhere is a good teacher at the moment a student needs one.

Vidyasaarthi is our answer. A saarthi does not fight the battle for you; a saarthi stays beside you and shows the way — following your progress, correcting your mistakes, believing in you.

We begin with Class 11 and 12. Our goal is that every child in India can learn this way — in their own language, at almost no cost.

The founderFounder, Vidyasaarthi · Physics teacher, 25+ years · JEE & NEET
Meet the team →

Questions

Straight answers.

Who is Vidyasaarthi for right now?

Class 11 and 12 students preparing for JEE, NEET and board exams — anywhere in India.

Is there a real teacher?

Every lesson is made by experienced teachers, and every question and solution goes through teacher review. It is not a live tutor; it is a teacher’s method, there for you whenever you study.

Which boards and languages?

Every board. Languages are rolling out step by step — Vidyasaarthi is being made to teach every child in their own language of India, with key terms in English for the exam.

How much will it cost?

Our goal is almost-free education. The price will be shown clearly on this website before you pay anything.

All questions →

Schools and coaching centres — bring Vidyasaarthi to your students.

  • Teacher Console for your teachers
  • Practice sets and tests from past papers
  • See where each student slips
For schools and coaching centres →