Chapter 02: Vectors and Equilibrium

This is a second chapter of the book Physics 11 published by Punjab Curriculum and Textbook Board, Lahore, Pakistan.

After studying this chapter the students will be able to:

• Understand and use rectangular coordinate system.
• Understand the idea of unit vector. nun vector and position vector.
• Represent a vector as two perpendicular components (rectangular components).
• Understand the rule of vector addition and extend it to add vectors using rectangular components.
• Understand multiplication of vectors and solve problems.
• Define the moment of force or torque.
• Appreciate the use of the torque due to a force.
• Show an understanding that when there is no resultant force and no resultant torque a system is in equilibrium.
• Appreciate the applications of principle of moments.
• Apply the knowledge gained to solve problems on statics.