Practice question
Question
A wheel of radius 0.4m and moment of inertia 1.6kg m2 is accelerated by a torque of 8Nm. What is its angular acceleration?
Explanation
Torque: τ = Iα. τ = 8Nm, I = 1.6kg m2. α = τI = 81.6 = 5rad/s2. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 5 rad/s². This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
Related blogs
Guides and insights connected to this topic
Plant Cell Structure and Organelles: Definition, Diagram, Functions
Learn what defines a plant cell, how it differs from an animal cell, and the structure and functions of its 14 major organelles with clear explanations and diagrams.
Animal Cell Structure, Diagram and Organelles – Definition, Types, Functions
Learn what defines an animal cell, its organelles, and how they differ from plant cells. Includes diagrams and clear explanations of cell structure and functions.
Electrophoretic separation of protein by SDS-PAGE
IntroductionElectrophoresis is the process of migration of charged molecules in response to an electric field. The rate of migration depends...