MV=(m+M)u или u=MV/(m+M)
mgh+.5*M*V^2 = .5*(m+M)*u^2 + Q
MV=(m+M)u или u=MV/(m+M) mgh+.5*M*V^2 = .5*(m+M)*u^2 + Q
MV=(m+M)u или u=MV/(m+M)
mgh+.5*M*V^2 = .5*(m+M)*u^2 + Q
MV=(m+M)u или u=MV/(m+M) mgh+.5*M*V^2 = .5*(m+M)*u^2 + Q