PHYSICAL QUANTITY

Time: formulas and units of measurement

Time: symbol t, τ, unit with. Formulas and explanations for Mechanics, Modern physics.

t,\ \tau

t, τ

\text{s}

second

KEY CONNECTIONS

Formulas

t = \frac{S}{v}

t = S / v

t = \frac{∣ v - v _{0} ∣}{a}

t = |v − v₀| / a

t = \frac{2 h}{g}

t = √(2h / g)

t = \frac{2 S}{a}

t = √(2S / a)

t = \frac{m}{k I}

t = m / (kI)

τ = \frac{τ _{0}}{1 - \frac{v ^{2}}{c ^{2}}}

τ = τ₀ / √(1 − v²/c²)

NOTATION

$t$: Time is a quantity characterizing the duration and sequence of events.
$S$: Distance - the length of the space between selected points.
$v$: Speed is the speed and direction of change in body position.
$v_0$: Initial speed - the speed of the body at the selected initial moment.
$a$: Acceleration is the rate of change in the speed of a body.
$h$: Height - vertical distance from the selected level.
$g$: Gravity acceleration is the acceleration of a body under the influence of gravity without taking into account the resistance of the medium.
$m$: Mass is a scalar physical quantity that is a measure of the inertia of a body.
$k$: Electrochemical equivalent is the mass of a substance released by a unit charge.
$I$: Current strength is the charge passing through the cross section of a conductor per unit time.
$\tau_0$: Proper time is time measured in the reference system associated with the object.
$c$: The speed of light in a vacuum is the maximum speed of propagation of interactions.

THEORY