∴ Combined length of both the trains is **350 m**.

Just **measure time taken by the train from 1 stone to other using stopwatch.** **Now divide 360 by the time u got on stopwatch, u'll get speed in km/hr**. E.g. If u get 4 sec, then divide 360 by 4. Which is 90 km/hr.

**Causes Of Head-On Collisions**

- Distracted Driving. Distracted driving endangers life and property and is the cause of many head-on collisions.
- Impaired Driving.
- Fatigued Driving.
- Driver Confusion.
- Speeding.
- Improper Passing.

Train-Car Collisions

According to the US Department of Transportation, **there are about 5,800 train-car crashes each year in the United States**, most of which occur at railroad crossings.

**How Do You Survive a Head-On Collision?**

- Obeying the speed limit.
- Keeping a safe distance behind the vehicle in front of you.
- Wearing a seatbelt properly.
- Regularly inspecting your vehicles airbags, brakes, and tires.
- Turning the steering wheel to avoid head-on impact, if possible.

If both trains leave the station at the same time, how far apart will they be at the end of two hours? To solve this problem, you **compute the distance traveled by train A and then the distance traveled by train B and add the results together**. Train A travels 120 miles during the two-hour period.

∴ Combined length of both the trains is **350 m**.

**When two bodies move in opposite direction, then the Relative Speed = Sum of Speeds** i.e for e.g. for a person sitting in a train moving with a Speed of 40 km/hr in the west direction, another train which is going towards east with a Speed of 40 km/hr, will appear to move at a Speed of (40+40) = 80 km/hr.

Almost every IAS aspirant know the importance of reading newspapers for UPSC Civil Services Exam preparation. Among the newspapers in the market, **'The Hindu' is the most recommended newspaper, primarily for its high standards**. You can either read the paper version OR the digital version (e-paper).

Making notes for any exam is very important for getting high marks. And when aspirants prepare CSE notes, **it will help them revise the entire syllabus efficiently in less time**. Also, making UPSC CSE notes complete and organized makes difficult topics easier.

Acceleration can be caused by either a change in the magnitude or the direction of the velocity. Instantaneous acceleration a is the acceleration at a specific instant in time. **Deceleration is an acceleration with a direction opposite to that of the velocity**.

For the first turn, just read the book and underline/ highlight the important things. You are supposed to start making jotting **when you start reading the books for UPSC preparation for the second time**. Second time reading will help you understand the important points of the chapter and the things you need to remember.

**Memorize basic equations.**

- Velocity = Change in position/Change in time (v=dx/dt)
- Acceleration = Change in velocity/Change in time (a=dv/dt)
- Current velocity = Initial velocity + (Acceleration × time) (v=v
_{0}+a×t) - Force = Mass × acceleration (F=m×a)
- Kinetic energy = (1/2)Mass × velocity
^{2}(K=(1/2)m×v)

**Note-making is an extremely crucial step for UPSC preparation**. Moreover, we tend to lose about 40% of the new information in just 24 hours. Hence, to retain it well, it is important to keep revising it.

**So here's how to learn your physics GCSE equations in three easy steps:**

- visit GCSEPhysicsNinja.com and find the equation flashcard by.
- Write the flashcard question onto one side of an index card then watch the.
- Test yourself on your flashcard THREE times on different occasions over a couple of weeks.

**Doing well on your IGCSE physics can often seem hard**. You must put in an effort to do well and there aren't too many shortcuts to get a good final grade – it requires work.

**Here are some tips for making notes for UPSC preparation.**

- #1. Keep separate notebooks for each subject, organize notes properly.
- #2: Don't take notes blindly, focus on what you're writing.
- #3. Handwritten notes or E-notes: Which is better?
- #4.
- #5: Make notes that are relevant for the exam.

**Students should make separate notes for Prelims and mains**. This is because, in the prelims exam, the topics covered is precise while in the mains exams extensively all the syllabus has to be covered. Students can even make short notes for appearing in the interview.

**Coaching notes are helpful and easy to revise before the exam**. But they can only supplement but never substitute standard books. Always map your notes onto the chapters and topics in syllabus. Most coaching institutes do not cover the syllabus entirely.

**There will be a revised equation sheet for the GCSE Physics exam in summer 2022 which will cover all the physics equations required in the subject content**. You can find the equation sheet on our website now (296.8 KB), in order for students to familiarise themselves with it for revision and exam practice.

Current affairs are important, newspapers are important, but not so much that you invest disproportionate amount of time in it. In my experience, **ideally one should finish reading day's current affairs under 2 hours**. 3-4 hours for everyday current affairs is an overkill.

Dated : 24-Jun-2022

Category : Education