Предмет: Физика, автор: anImE090

СРОЧНО ПЛИЗ, с решением.
Ящик массой 15 кг равномерно перемещают по деревянному полу. Коэффициент трения скольжения между ящиком и полом равен 0,2. Чему при этом равна сила трения скольжения? В ответ записать число и через пробел единицу измерения.

Ответы

Автор ответа: sofia70707

Ответ:

29,43 Н

Объяснение:

Дано:

g=9,81 м/с^2

m=15 кг

μ=0,2

Решение:

Fтр=μ×N; N=m×g

N=15кг×9,81 м/с^2=147,15

Fтр=0,2×147,81=29,43 Н

Вроде правильно, но не уверенна.

Надеюсь помогла)

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