1.1 SCALAR AND VECTOR QUANTITY.pptx

DR. N.G.P. INSTITUTE OF TECHNOLOGY - COIMBATORE-48 (AN AUTONOMOUS INSTITUTION) BIOMECHANICS UNIT I: Faculty name, Designation and Department  Department of Biomedical Engineering AY 2022-2023 Even 2...

DR. N.G.P. INSTITUTE OF TECHNOLOGY - COIMBATORE-48 (AN AUTONOMOUS INSTITUTION) BIOMECHANICS UNIT I: Faculty name, Designation and Department  Department of Biomedical Engineering AY 2022-2023 Even 2 SCALAR AND QUANTITY VECTOR  3 SCALAR QUANTITIES The scalar quantities are those quantities which have magnitude only Example  length,mass,time,distance,volume, density, temperature, speed etc. Department of Biomedical Engineering AY 2022-2023 Even  4 VECTOR QUANTITIES A vector quantity is defined as the physical quantity that has both directions as well as magnitude. Department of Biomedical Engineering AY 2022-2023 Even  5 UNIT VECTOR QUANTITY A vector, whose magnitude is unity, is known as unit vector. Department of Biomedical Engineering AY 2022-2023 Even  6 Equal vectors The vectors, which are parallel to each other and have same direction and equal magnitude are known as equal vectors. Department of Biomedical Engineering AY 2022-2023 Even  7 Like vectors The vectors, which are parallel to each other and have same sense but unequal magnitude, are known as like vectors. Department of Biomedical Engineering AY 2022-2023 Even  8 Examples Department of Biomedical Engineering AY 2022-2023 Even  9 Example 1 Two forces of 100 N and 150 N are acting simultaneously at a point. What is the resultant of these two forces, if the angle between them is 45°? Department of Biomedical Engineering AY 2022-2023 Even  10 SOLUTION  Solution. Given: First force (F) = 100 N: Second force (F) = 150 N and angle between F1 and F2 (0) = 45°. We know that the resultant force, Department of Biomedical Engineering AY 2022-2023 Even