Within the observation period (fractions of seconds to seconds) almost constant, or with approximately stable acceleration. May be negative, also exponential, may exhibit periodically varying progression, but for the basic considerations is sufficient constant.
Ndani ya muda uchunguzi (FRACTIONS ya sekunde kwa sekunde) karibu mara kwa mara, au na kuongeza kasi imara Takriban. Inaweza kuwa hasi, pia kielelezo, yaweza kuonyesha tofauti Mara maendeleo, lakini kwa masuala ya msingi ya kutosha ni mara kwa mara.