Wyznacz :1. v=s/t , t=?2. a= Vk-Vo/t , Vo=?3. S=1/2at² , t=?4. m₁V₁ = m₂V₂ , V₂= ? 5. P trapezu = (a+b)*h/2 , b=?
v=s/t /*t
v*t=s /v
t=s/v
2)
a=vk-vo/t /*t
at=vk-vo /-vk
at-vk=-vo /-1
-at+vk=vo
3)
s=1/2at² /*2
2s=at² /a
2s/a=t² /√
t=√2s/√a
4) m1*v1=m2*v2 /:m2
m1*v1/m2=v2
5. P trapezu = (a+b)*h/2 /*2
2P=ab+ah /-ah
2P-ah=ab /:a
2P-ah/a=b
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Wyznacz :
1. v=s/t , t=?
2. a= Vk-Vo/t , Vo=?
3. S=1/2at² , t=?
4. m₁V₁ = m₂V₂ , V₂= ?
5. P trapezu = (a+b)*h/2 , b=?
v=s/t /*t
v*t=s /v
t=s/v
2)
a=vk-vo/t /*t
at=vk-vo /-vk
at-vk=-vo /-1
-at+vk=vo
3)
s=1/2at² /*2
2s=at² /a
2s/a=t² /√
t=√2s/√a
4) m1*v1=m2*v2 /:m2
m1*v1/m2=v2
5. P trapezu = (a+b)*h/2 /*2
2P=ab+ah /-ah
2P-ah=ab /:a
2P-ah/a=b