(a) Write the mathematical expression for torque and state its physical meaning. (b)…
PHYSICS · Subjective · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
(a) Write the mathematical expression for torque and state its physical meaning.
(b) Write the mathematical expression for mechanical work and state its physical meaning.
(c) Show that torque is a vector quantity whereas work is a scalar quantity.
(d) Angular momentum is defined as L=r×p. Classify angular momentum and state its SI unit.
(e) Pressure is defined as normal force per unit area. Discuss whether pressure is a scalar or a vector and justify your answer.