Предмет: Физика, автор: hfhfjugy

автомобиль ехал 2мин 1200 м а затем проехал еще 500 метров за 30 сек опредилить среднию скорость движение

Ответы

Автор ответа: clevergirll0

1

Ответ:

Объяснение:

T1=2 мин

V1=10

S2=500

t2=30 сек

Vср-?

Решение:

Vср=s1+s2/t1+t2

S1=v1*t1=10*120 сек=1200

Vср=1200+500/10+30=42,5 м/с

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Аноним

Поставьте глаголы в нужную форму плиз!!! (даю много баллов)
I. 1.He usually (help) his parents in the morning. 2.Next week they (give) a concert for the war veterans. 3.The day before she (visit) her ill neighbour. 4. Yesterday at 6 p.m. he (work) on a computer. 5.Look! They (play) football in the yard. 6.Alice (feed) already her parrot. 7.When Jane called her mother she (leave) just the office.
II. 1.My friend (keep) secrets well. 2.In three weeks the pupils (pass) exams in Maths. 3.Last Sunday the teacher (take) his pupils to the forest. 4.While the mother was cooking the cake the daughter (lay) the table. 5.Look! The birds (eat) already the bread. 6.The father (come) just from work. 7.They (leave) the city by last Sunday.
III. 1.Sometimes Jesse and Kim (make) toothbrush holders for selling. 2.She (learn) two languages next year. 3.In his childhood Tom (want) to be a driver.4.The day before at 9 friends (listen) to the opera. 5.Don’t trouble me! I (think) over my report. 6.I’m sorry. I (not learn) the poem yet. 7.When Hilary visited Stephen, he (got) already well.
IV. 1.He often (give) a helping hand to his classmates. 2.Last Saturday the children (clean) the park. 3.The day after tomorrow all the pupils (discuss) teenagers’ problems. 4.Two years ago the family (move) to a new flat. 5.I’m sorry. I (write) my home composition now. 6.She (be) never to London. 7.By last lesson they (do) all the task.

1 год назад

Предмет: Английский язык, автор: amazonka404

Billy is fat. He has cakes and chocolate for breakfast. He has sweets and jam for lunch. Yesterday Billy ate two box of chocolates, fifteen pieces of cake and ten bags of sweets. He doesn`t eat cabbage and carrots. Billy doesn`t like to run and jump. He can`t swim. Billy is sad. Can you help my friend Billy?

ПОМОГИТЕ ПЕРЕВЕСТИ, ПОЖАЛУЙСТА!!!

1 год назад

Предмет: Другие предметы, автор: dimasokolov14

сколько километров Россия

1 год назад

Предмет: Психология, автор: КрисиДенис

Помогите пожалуйста написать 20 чувств

8 лет назад

Предмет: Математика, автор: AlinaTasueva

Решите уравнения, пожалуйста

8 лет назад