السرعة و التسارع في الفيزياء

ممكن أحد يوضحلي النقطة التالية (النص بالانجليزية)

On average, your speed was half your final value, and you know this because

there was constant acceleration. Your final speed was

vf = a × t = at

Okay, you can find your final speed, which means your average speed because

it went up in a straight line, was

(v> = 1⁄2 (a × t>

كيف أصبح معدل السرعة مساوي للنصف السرعة النهائية vf