recapitulare fizica

Question 1

viteza

Answer 1

V=delta x/delta t
[V]=1 m/s

delta t mare= viteza medie
delta t tinde spre 0=viteza momentana/instantanee

viteza momentana este un vector tangent la traiectorie

Question 2

acceleratie

Answer 2

a=delta v/delta t
[a]=a m/s^2
vector orientat spre int curbei

Question 3

M rectilinie uniforma

Answer 3

vector viteza constant ca marime,directie si sens
V=delta x/delta t
legea miscarii x=x0+v(t-t0)