Предмет: Физика, автор: sal001

Изменение силы, действующей на материальную точку, движение которой описывается уравнениями x=at^3, y=Bt,
1.происходит только по модулю
2.равно нулю
3.происходит только по направлению
4.происходит по направлению и по модулю

Ответы

Автор ответа: IUV

x=at^3, y=Bt,
x``=6at, y``=0,
F=ma - сила изменяется только вдоль координаты х - ответ 1

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