Given: a particle A is moving in coordinate plane Oxy. The law of particle’s motion is specified in coordinate form: xA= 2t3 - 4t + 3 (m) yA= t - 3 (m)
Find: the radius of curvature ρ (in m) of particle's trajectory at the instant t1=1s.

К сожалению, у нас пока нет статистики ответов на данный вопрос, но мы работаем над этим.

Given: a particle A is moving in coordinate plane Oxy. The law of particle’s motion is specified in coordinate form: xA= 2t3 - 4t + 3 (m) yA= t - 3 (m)Find: the radius of curvature ρ (in m) of particle's trajectory at the instant t1=1s.