Question

ПОМОГИТЕ ПЛИЗ!!! СРОЧНО НАДО!!!!

Answer 1

v²=2K/m=4/16
v=√4/16=2/4=0,5

Answer 2

Подставляем
2 = 16*v² / 2
16v² = 4
v²=4/16
v =√4/16
v = ± 1/2
|v| = 1/2