Вопрос школьника по предмету Физика
Тело без начальной скорости с высоты Н=20 м Определите скорость тела на высоте h=15 м сопротивление движению пренебречь коэффициент принять равным 10Н/кг
Ответ учителя по предмету Физика
дано H=20м h=15 м V- ?
V^2=2*g*(H-h)
V=√2*10*5=10 м/с
Похожие вопросы от пользователей
1. Mike never lets his little brother drive his ____________________ car.
a. sports expensive b. expensive sports
2. She makes ____________________ cookies.
a. delicious chocolate b. chocolate delicious
3. I want you to meet that ____________________ girl.
a. tall blonde Swedish b. blonde tall Swedish
4. The room was filled with ____________________ balloons.
a. red big b. big red
5. The boy needs ____________________ balls for that activity.
a. five cotton small b. five small cotton
6. What are you doing with these ____________________ bottles?
a. empty glass b. glass empty
7. She likes _____________ coffee.
a. hot Irish b. Irish hot
8. He knows ____________ languages.
a. three foreign difficult b. three difficult foreign
9. He writes __________ letters.
a. nice long b. long nice
ПОМОГИТЕ!!!!