hi I am Mahaprasad, educator on Unacademy platform.. i completed my MSc in physics.
and currently I am working as a teacher.. Teaching is my

Mahaprasad Jena

In physics, motion is a change in position of an object over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, time, and speed.  An object's motion cannot change unless it is acted upon by a force.

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NEET UG

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Motion : Pre Medical

Motion in a Straight Line

Mechanics

Physics

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Lesson is about Distance and Displacement, whereas Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

Distance and Displacement

The time rate of change of position of a body in any direction is known as its speed.

It is measured by the ratio of the distance by a body to the time in which this distance is covered

i.e.               Speed = distance/time

Speed

Velocity and speed are very similar ideas, but velocity is a vector, and speed is not. Suppose we knew that someone was driving at thirty-five kilometers an hour (35 km/hr), but the direction wasn't given. How would you draw an arrow to represent a vector? You can't know how to draw the vector if you only have one value (either amount or direction). In this example, you were never told about the direction. Physicists would say that the speed is thirty-five kilometers an hour (35 km/hr), but the velocity is unknown. On the other hand, if you're moving at 35 km/hr in a northern direction, then you would have an arrow pointing north with a length of 35. Physicists would say that the velocity is 35 km/hr north. 

Velocity is the rate of motion in a specific direction. I'm going that-a-way at 30 kilometers per hour. My velocity is 30 kilometers per hour that-a-way. Average speed is described as a measure of distance divided by time. Velocity can be constant, or it can change (acceleration)

Velocity

Equations involving displacement, initial velocity, final velocity, acceleration and time of the motion of a moving body are equations of motion. ... Acceleration is defined as the change in velocity per unit time. Acceleration is measured in m/s2. The negative acceleration is calledretardation or deceleration.

Retardation and Equation of Motion

Motion in a straight line under constant acceleration is a common physics homework problem. The equations of motion to describe these conditions that can be used to solve any problem associated with them. These equations are:

(1) x = x0 + v0t + ½at2
(2) v = v0 + at
(3) v2 = v02 + 2a(x – x0)

where
x is the distance travelled
x0 is the initial starting point
v is the velocity
v0 is the initial velocity
a is the acceleration
t is the time

This example problem shows how to use these equations to calculate position, velocity and time of a constantly accelerating body.

Numericals on Equation of Motion

Tamanna Chaudhary

The course covers the entire concept of projectile motion. It includes the projectile thrown horizontally as well as at a certain angle. Important points are also given exclusively to facilitate the viewers with better and deep understanding of the concept. The course also includes important types of question on projectile motion, that once solved will benifit the student with the knowledge of application of the given concept.

(Hindi) Projectile Motion: Pre-Medical Exams

The course includes two parts. First part (1-40 questions) includes questions on Motion in a straight line and Second part (41-60 questions) includes questions on Motion in a Plane (Projectile motion is not included in this course as question's on it are already given in another course: Projectile Motion- Pre Medical Examinations)

(Hindi) Kinematics: 60 Important MCQs for NEET

The course in going to discuss 30 important MCQs on motion in a straight line to give students an idea of the level of questions asked in the exam as well as how to attempt it.

(Hindi) Practice Course on Motion in a Straight Line - NEET

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Youtube: Tapadar's Physics

Khairul Alom Tapadar

Its not a conventional course but it is a catalyst which will help every student to crack Premedical Exams like NEET, JIPMER, AIIMS etc. It will cover the whole syllabus of NEET 2019 as well as AIIMS 2019. In this course will learn concepts and applications of these concepts in Numerical Problems. Here will study the 1st step to Mechanics "Motion in a Straight Line".

(Hindi)TARGET 2K19: Motion In a Straight Line

Have taught Physics to students at Ambition Pre-Medical Institute to help them crack NEET/AIIMS. Worked in toppr and solved doubts with 97%.

Kushagra Tiwari

It is focussed on mainly practicing questions that are frequently asked in the pre medical examinations.
The course will be discussing the approach towards a question.
We will be practicing use of graphs, equations of motion and basic differential and integral relationship between position , velocity and acceleration.

Problems based on Kinematics (1D - 2D Motion)

The course is divided into two major parts - the first part includes topics on vectors like introduction to scalars and vectors, representation of a vector, different types of vectors, zero vector and it's properties, Vector addition (triangle and parallelogram law of vector addition), base vectors, scalar and vector product. The other part of the course includes the basic mathematical tools that should be practiced like trigonometry,  types of graphs, maxima and minima differential calculus and integral calculus.

Lessons

5 lessons • 53m

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Distance and Displacement

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Speed

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Velocity

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Retardation and Equation of Motion

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Numericals on Equation of Motion