fatt52

Verified answer

P=2.8*10^3 H   t=10 c   s=35 м   T=?
==========
s=a*t²/2  ⇒a=2*s/t²
T=P-m*a
m=P/g
T=P*(1-2*s/(g*t²))=2.8*10^3*(1-2*35/(10*100))=2.59*10^3 H
======================