anybody can do me a favor?

来源：百度知道 编辑：UC知道 时间：2024/05/03 22:50:51
it's an Science problem.
1. What force is required for a 50 kg object to accelerate at 4m/s^2?
2. Give a sample scenario that includes at least two forces and friction that would demonstrate question 1.

Thank you very much!!~~~~
and please hurry!~~~~~~~~~
关键是第二题啦！！！！！！！！！！
各位大侠帮帮忙啦～
救命～
PS 我不需要翻译，我要的是答案！

1.according to F=ma,we can get F=50*4=200N
2.the sample: one pull a box,another push the box, the box is on the ground so there is friction.

1.令50公斤重的物体以4米/秒的速度前进需要多大力量？
2.给出一个样本，至少包含两个动力和摩擦力以证明问题1.

1.200N