Answer:
F = 592238.09 N
Step-by-step explanation:
To find the mean force you first calculate the acceleration by using the following kinematic equation:
![v^2=v_o^2+2ax\\\\v_o=0m/s\\\\v=10km/h\\\\x=8.4m\\\\](https://img.qammunity.org/2021/formulas/physics/high-school/z6brove3zl0qqkbr6m1eku9zc9h791lj8y.png)
you do "a" the subject of the equation and replace the values of the other parameters:
![a=(v^2)/(2x)=(10000m/s)/(2(8.4m))=595.23(m)/(s^2)](https://img.qammunity.org/2021/formulas/physics/high-school/kzn0iym1a1gse4t4ks78elyxpmef49ep13.png)
next, the force, by using the second Newton law is:
![F=ma=(1000kg)(595.23(m)/(s^2))=595238.09\ N](https://img.qammunity.org/2021/formulas/physics/high-school/xp2w9ggb6wlmytn4afqaxbaot3u58jjh2f.png)
hence, the force is 592238.09 N
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TRANSLATION:
Para encontrar a força média, primeiro calcule a aceleração usando a seguinte equação cinemática:
você faz "a" o assunto da equação e substitui os valores dos outros parâmetros:
Em seguida, a força, usando a segunda lei de Newton, é:
portanto, a força é 592238.09 N