A train having a velocity of 72km/h ,stopping in 4 seconds when all the wheels are...

0 голосов
131 просмотров

A train having a velocity of 72km/h ,stopping in 4 seconds when all the wheels are blocked. What is the coefficient of kinetic friction?


Физика (12 баллов) | 131 просмотров
Дан 1 ответ
0 голосов

Решите задачу:



e = \frac{72 \times {4}^{2} }{2} = 576
(26 баллов)