Задача 33448 Решить 428-431...

vk185896811

2019-02-11 14:12:39

Решить 428-431

sova

2019-02-11 14:25:25

428
a)s(6)=5*6+6=36
s=36
t=6
v_(cp)=s/t=36/6=5
б) s=s(6)-s(3)=5*6+6-(5*3+6)=30-15=15
s=15
t=6-3=3 c
v_(cp)=s/t=15/3=5

429
АМ=k*t^2
12=k*(2)^2
12=4k
k=3

s(t)=3t^2
a)
s(5)=5*5^2=75
v_(cp)=s/t=75/5=15

430
s=s(t+ Δt)-s(t)

1) s(4+2)-s(4)=(6^3)+(3/6)-(4^3+(3/4))=152-(1/4)=607/4
t=2
v=s/t=607/8
2)