Предмет: Физика, автор: kseremet4

рухи двох матеріальних точок описуються рівняннями х1= 10t2 - 50 х2= -40t описати рухи визначити час і місце зустрічі

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Автор ответа: podpivasnichok

Для того, щоб знайти час і місце зустрічі двох матеріальних точок, вам потрібно прирівняти вирази х1 та х2, оскільки точки зустрінуться тоді, коли їх координати будуть однаковими. Тобто:

10t^2 - 50 = -40t

Тепер, розв'язавши це рівняння, знайдемо час і місце зустрічі. Спершу спростимо рівняння:

10t^2 + 40t - 50 = 0

Тепер, можна використовувати квадратне рівняння для знаходження t. Можливо, застосувати дискримінант:

D = b^2 - 4ac

Де a = 10, b = 40, і c = -50.

D = 40^2 - 4 * 10 * (-50)

Після знаходження значення D, можна використовувати квадратний корінь для знаходження t. Потім, підставивши t у вираз х1 або х2, знайдете місце зустрічі.

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