CBSE Class 11 Physics NCERT Solutions: Chapter 4, Motion in a Plane
Download the NCERT solutions for Class 11 Physics chapter 4, Motion in a Plane. Our subject experts have reviewed these NCERT solutions to provide the error free content in order to help you make an effective preparation for the annual exams.
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In this article we are providing the NCERT solutions for Class 11 Physics chapter 4, Motion in a Plane. Here all the questions are solved with detailed explanation which will make it easy for you to prepare easily and effectively for the annual exams 2019.
Some prominent features of Class 11 Physics NCERT Solution are:
- Each solution is explained in detail but simple language.
- Solutions have been rechecked/ revised by subject experts to make them error free.
- All the concepts are made clear.
All the class 11 Physics NCERT solutions have been collated in PDF format which students may easily download for free of cost.
Main topics discussed in Class 11 Physics chapter- Motion in a Plane are:
- Introduction to the concept of motion in a plane
- Scalars and vectors
- Multiplication of vectors by real numbers
- Addition and subtraction of vectors — graphical method
- Resolution of vectors
- Vector addition — analytical method
- Motion in a plane
- Motion in a plane with constant acceleration
- Relative velocity in two dimensions
- Projectile motion
- Uniform circular motion.
Some of the questions and their solutions from NCERT Solutions for Class 11: Motion in a Plane, are as follows:
Q. Pick out the two scalar quantities in the following list:
Force, angular momentum, work, current, linear momentum, electric field, average velocity, magnetic momentum, relative velocity.
Work and current are scalar quantities.
Work done is given by the dot product of force and displacement. Since the dot product of two quantities is always a scalar, work is a scalar physical quantity. Current is described only by its magnitude. Its direction is not taken into account. Hence, it is a scalar quantity.
Q. Pick out the only vector quantity in the following list:
Temperature, pressure, impulse, time, power, total path length, energy, gravitational potential, coefficient of friction, charge.
Impulse: Impulse is given by the product of force and time. Since force is a vector quantity, its product with time (a scalar quantity) gives a vector quantity.
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