Предмет: Физика, автор: 1483983829

помогите пожалуйста!!! 205 задача

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Автор ответа: malakasha
1
Дано: 
A = 250 Дж 
h= 50 м 
F сопротивления = 0,25 Fт 

Найти: m ястреба -? 


Решение: 
A = ΔF * h ,
ΔF = F тяж - F сопротивления = F тяжести - 0,25F тяжести = 0,75 F тяжести  = 0,75 m ястреба *  g * h ; 

Всё подставим: 
 
m  ястреба = A / 0.75 * g* h = 250 / 0.75* 10* 50 = 0.68 кг . 

1483983829: Большое спасибо!
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