12/15/2023 0 Comments Rotational motion![]() ![]() Thus, in the case of rotational motion, different constituent particles have different linear velocities but all of them have the same angular velocity.Īs in linear motion, for a body having uniform angular acceleration, we shall derive the equations of motion. But in the same time interval, they all rotate through the same angle θ and hence the angular velocity is the same for the all the particles of the rigid body. Thus their linear velocities are different. in the rigid body covers unequal distances P 1P 1 ′, P 2P 2 ′, P 3P 3 ′. The different particles at P 1, P 2, P 3. Let the body rotate from the position A to the position B. Let us consider a rigid body that rotates about a fixed axis XOX ′ passing through O and perpendicular to the plane of the paper as shown in Fig. The position of particles moving in a circular path is conveniently described in terms of a radius vector r and its angular displacement θ. The particles lying on the axis of rotation remains stationary. The axis of rotation may lie inside the body or even outside the body. A rigid body is said to have pure rotational motion, if every particle of the body moves in a circle, the centre of which lies on a straight line called the axis of rotation (Fig.). When a body rotates about a fixed axis, its motion is known as rotatory motion. The solids, in which the changes produced by external forces are negligibly small, are usually considered as rigid body. Every body can be deformed more or less by the application of the external force. When forces are applied on a rigid body, the distance between any two particles of the body will remain unchanged, however, large the forces may be.Īctually, no body is perfectly rigid. Apart from catering students preparing for JEE Mains and NEET, PW also provides study material for each state board like Uttar Pradesh, Bihar, and others.A rigid body is defined as that body which does not undergo any change in shape or volume when external forces are applied on it. Physics Wallah strives to develop a comprehensive pedagogical structure for students, where they get a state-of-the-art learning experience with study material and resources. With our affordable courses like Lakshya, Udaan and Arjuna and many others, we have been able to provide a platform for lakhs of aspirants.įrom providing Chemistry, Maths, Physics formula to giving e-books of eminent authors like RD Sharma, RS Aggarwal and Lakhmir Singh, PW focuses on every single student's need for preparation. ![]() Physics Wallah's main focus is to make the learning experience as economical as possible for all students. We believe in empowering every single student who couldn’t dream of a good career in engineering and medical field earlier. PW strives to make the learning experience comprehensive and accessible for students of all sections of society. We successfully provide students with intensive courses by India's top faculties and personal mentors. ![]() Physics Wallah also caters to over 3.5 million registered students and over 78 lakh+ Youtube subscribers with 4.8 rating on its app. We also provide extensive NCERT solutions, sample papers, NEET, JEE Mains, BITSAT previous year papers, which makes us a one-stop solution for all resources. Physics Wallah is India's top online ed-tech platform that provides affordable and comprehensive learning experience to students of classes 6 to 12 and those preparing for JEE and NEET exams. ![]()
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