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# JEE Advanced Newton's Laws of Motion and Friction Important Questions Last updated date: 26th Nov 2023
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## JEE Advanced Important Questions of Newton's Laws of Motion and Friction

In this chapter, students will get hold of the topics such as the types of forces, F=ma and coplanar Forces. All of these concepts have been taught with the help of explanatory diagrams and supporting examples with complete information. The solutions to the problems are based on these topics given herein further help the students to understand their level of learning. Students will learn interesting topics such as Equilibrium of forces, Pseudo forces and Non-Inertial frame of reference in this chapter with the help of explanatory images and figures.

Vedantu has more than 400 teachers who have taught around 1 million hours to the students from all across the country. Our objective is to enhance the ways of learning with the help of technology and thereby evolving educational norms that have been practised for decades. Laws of Motion IIT JEE questions hold a good amount of weightage in the examination and students can score really well with the solved important questions PDF.

 Category: JEE Advanced Important Questions Content-Type: Text, Images, Videos and PDF Exam: JEE Advanced Chapter Name: Newton's Laws of Motion and Friction Academic Session: 2024 Medium: English Medium Subject: Physics Available Material: Chapter-wise Important Questions with PDF

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## Introduction to the Chapter

When a ball is rolled, it comes to rest after some time. The reason behind this is friction. It acts as a resistance on the ball from the surface. The motion of the ball and friction has opposite directions. Friction is the resistance offered by a surface on an object when it moves past the surface.it is the reason why you don’t fall when you walk and why you slide when you skate on ice. Friction is of the following types:

• Static friction is when someone tries to move an object on a surface without actually putting any force in between the object and the surface. A car parked on a hill is an excellent example of it.

• Sliding friction: A child sliding down a slope is an excellent example of sliding friction. It acts as an opposite force between two objects sliding against each other.

• Rolling friction: it resists the force of a rolling body on a surface. Rolling a wheel on the ground is an example of rolling friction.

• Fluid friction occurs between fluid layers which move relatively with each other. Two thin wet glass plates sliding is an example of fluid friction.

On the other hand, Newton's laws of motion is another important topic in JEE physics. They might be common today but they ushered in a new era in studying physics centuries ago. The three laws help us to understand how objects act when they are still, when they move and when some external objects act upon them. Following are Newton’s laws of motions:

• Newton’s first law states that an object continues to be in motion or rest until an external object acts upon it. This law is also known as the law of inertia.

• Newton’s second law of motion states that force acted upon a body is a product of mass and acceleration. More the force, the more the acceleration.

• Newton’s third law of motion states that every action of an object has an equal and opposite reaction. For example, when a ball hits the ground, it bounces back with the same amount of energy.

Students are often asked questions about numerical problems and also conceptual questions related to them.

## FAQs on JEE Advanced Newton's Laws of Motion and Friction Important Questions

1. What are the laws of friction that may be asked in the JEE advanced exam?

There are five laws of friction. The first law states that when an object moves, friction is proportional and perpendicular to its force. The second law states that friction experienced by an object is dependent on the nature of the object. The third law of friction states that friction does not have anything to do with the area of contact. The fourth law of friction states that kinetic friction is not affected by velocity. The final law of friction states that the coefficient of kinetic friction is lesser than the coefficient of static friction.

2. According to the chapter Newton’s Motion and Friction for JEE Advanced, who discovered the three laws of motion in physics?

Sir Isaac Newton discovered the three laws of motion in physics. He was an English astronomer, physicist, theologian, mathematician. He was a key figure in the philosophical revolution of enlightenment. He also made considerable contributions to optics. He was a fellow of Trinity College and also taught at the University of Columbia. Most of his works were unpublished till his death.

3. How is Newton’s law of motion different from Kepler’s law of motion as discussed in chapter Newton’s Laws of Motion and Friction for JEE Advanced?

Newton’s law describes motion in every object that we generally encounter. He gave three laws to explain the reason behind its motion, then explained related concepts through it. Unlike him, Kepler’s laws of motion mainly explain motion in planetary objects like stars, planets and asteroids. It tells us how they orbit and other related concepts. It also explains the velocity of different planetary bodies at different times.

4. According to the chapter, Newton’s Laws of Motion and Friction for JEE Advanced, what are the examples of Newton’s laws of motion?

Sir Isaac Newton contributed three laws of motion to physics. The first law is also known as inertia. A ball falling on the ground from the atmosphere is an example of this law. An example of the second law of motion is a guy pedalling a cycle and riding it. The force he puts on the pedals determines how fast the cycle moves. Finally, a rocket propelling up with the help of the fuel is an example of Newton's third law of motion.

5. According to the chapter, Newton’s Laws of Motion and Friction for JEE Advanced, what is Newton’s third law of motion all about?

Sir Isaac Newton has contributed 3 laws of motion to Physics. The third law of motion states that every action by an object has an equal and opposite reaction. His thought process started when he saw an apple falling and questioned the reason why it fell instead of going up. The best example for his third law of motion is when a ball hits the ground, it will bounce back with the same energy stating that every action has an equal and opposite reaction. These answers are available at the Vedantu website for free.