The Formula for the Position is Represented as

Case 1: 

Δx=x2−x1Δ�=�2−�1,

Where x₁ is the first position of the body, 

x₂ is the second position after undergoing displacement,

And  Δx is the rate of change in the displacement. 

Case 2: 

If the body changes its position after time t, the rate of change in position at any moment of time t, x(t), is articulated as

x(t)=12αt2+v0t+X0�(�)=12��2+�0�+�0

Where x(t) is the position of the body with time t,

x₀ is the initial position of the body,

v₀ is the initial velocity of the body, and 

α is the acceleration the body possesses.

Example:

A boy who has an initial velocity of 2 m/s had already covered a distance of 10 m. If it has a constant acceleration of 2 m/s², find the position of the boy at the end of 5s.

Ans:

Position of the boy =

x(t)=12αt2+v0t+X0�(�)=12��2+�0�+�0

=½ x 2 x 25 + 2 x 5 + 10  = 45m

Tips for Preparation for IIT JEE     

The exam is competitive because lakhs of students appear every year, but with the right guidance and organized preparation, even you can clear this exam. Some of the tips that our experts give to the aspirants are as follows: 

• Knowing the syllabus well is the first step, get a printout of the syllabus and try to remember all the topics and subtopics mentioned in the syllabus.
• Deciding on your study material; you should not confuse your mind by referring to too many sources for a single topic. Identify your source and stick to one source for one topic. You can check out the study materials provided on the website. 
• Have a clear idea about the marks allocation to every topic. We have already done that for you. Go through these before you start off your preparation.
• Read the topics from the notes on your own once, and watch the related videos to grasp the concept better.
• Simultaneously, start practising the past year’s JEE papers and other sample papers. Compare and learn from the solution of these papers prepared by our subject experts. 
• Keep practising and keep revising the notes, make your own short notes for quicker revision. 
• Interact with the mentors to get regular feedback, support, and guidance to keep you on track.