PHYSICAL QUANTITY

Speed: formulas and units of measurement

Speed: symbol v, unit m/s. Formulas and explanations for Mechanics, MCT and thermodynamics, Oscillations and waves.

v

\frac{\text{m}}{\text{s}}

meter per second

KEY CONNECTIONS

Formulas

v = \frac{S}{t}

v = S / t

v_{sr} = \frac{S}{t}

vav = S/t

v = v_{0} \pm a t

v = v₀ ± at

v = v_{0} + g t

v = v₀ + gt

v = 2 g h

v = √(2gh)

v_{kv} = \frac{3 R T}{M}

vkv = √(3RT / M)

v = \frac{2 π R}{T} = 2 π R ν = ω R

v = 2πR / T = 2πRν = ωR

a_{ts} = \frac{v ^{2}}{R}

ac = v² / R

v = λ ν

v = λν

c = λ ν

c = λν

NOTATION

Quantities in formulas

$v$: Speed is the speed and direction of change in body position.
$S$: Distance - the length of the space between selected points.
$t$: Time is a quantity characterizing the duration and sequence of events.
$v_{\text{sr}}$: Average speed is the ratio of the distance traveled to the time of movement.
$v_0$: 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.
$g$: Gravity acceleration is the acceleration of a body under the influence of gravity without taking into account the resistance of the medium.
$h$: Height - vertical distance from the selected level.
$v_{\text{kv}}$: Root mean square velocity is a characteristic of the thermal motion of gas particles.
$R$: The universal gas constant is the coefficient of connection between the parameters of an ideal gas.
$T$: Temperature is a measure of the thermal state of the body.
$M$: Molar mass is the mass of one mole of a substance.
$R$: Radius is the distance from the center of the circle to its point.
$T$: A period is the time of one complete repetition of a process.
$\nu$: Frequency is the number of repetitions of a process per unit of time.
$\omega$: Angular velocity is the speed of rotation of a body around an axis.
$a_{\text{ts}}$: Centripetal acceleration is acceleration directed towards the center of curvature of the trajectory.
$\lambda$: Wavelength is the distance between the nearest points of a wave in the same phase.
$c$: The speed of light in a vacuum is the maximum speed of propagation of interactions.

THEORY

PRACTICE

Speed: formulas and units of measurement

Formulas

Quantities in formulas

Related Lessons

Related tasks