Is distance a scalar or vector?
Distance is a scalar quantity that refers to “how much ground an object has covered” during its motion. Displacement is a vector quantity that refers to “how far out of place an object is”; it is the object’s overall change in position.
Why distance is called a scalar quantity?
the reason is that distance only have magnitude and no particular direction .therefore it is known as scalar quantity.
Can a scalar quantity be negative?
Complete answer: Now, as the real numbers include both, positive numbers as well as negative numbers, a scalar can be negative. Now, in physics, the magnitude of a physical quantity is expressed by some magnitude or say numerical value and a unit. Energy can take both, positive as well as negative values.
Is angular momentum a scalar?
The spin angular momentum of an object is defined as the angular momentum about its centre of mass coordinate. The spin angular momentum vector of a rigid body is proportional but not always parallel to the spin angular velocity vector Ω, making the constant of proportionality a second-rank tensor rather than a scalar.
What unit is angular momentum measured in?
Appropriate MKS or SI units for angular momentum are kilogram metres squared per second (kg-m2/sec). For a given object or system isolated from external forces, the total angular momentum is a constant, a fact that is known as the law of conservation of angular momentum.
What is P in angular momentum?
Angular momentum is a measure of the momentum of an object around an axis. Linear momentum (p) is defined as the mass (m) of an object multiplied by the velocity (v) of that object: p = m*v.
What is angular momentum and its SI unit?
The quantity of rotation of a body, which is the product of its moment of inertia and its angular velocity is called angular momentum. The SI unit of angular momentum is kilogram squared per second (kg-m2/sec).
What is SI unit of angular velocity?
radian per second
What is dimensional formula of angular momentum?
Or, M = [M0 L0 T-1] × [M1 L2 T0]-1 = M1 L2 T -1. Therefore, the angular momentum is dimensionally represented as M1 L2 T -1.