Galileo thought about whether acceleration should be defined as the rate of change of velocity over time or as the rate of change in velocity over distance.He chose the former,so let’s use the name “vroomosity” for the rate of change of velocit

Galileo thought about whether acceleration should be defined as the rate of change of velocity over time or as the rate of change in velocity over distance.He chose the former,so let’s use the name “vroomosity” for the rate of change of velocit
Galileo thought about whether acceleration should be defined as the rate of change of velocity over time or as the rate of change in velocity over distance.He chose the former,so let’s use the name “vroomosity” for the rate of change of velocity over distance.For motion of a particle on a straight line with constant acceleration,the equation v=vi+at gives its velocity  as a function of time.Similarly,for a particle’s linear motion with constant vroomosity ,the equation v=vi+kx gives the velocity as a function of the position x if the particle’s speed is vi at x＝0.(a) Find the law describing the total force acting on this object of mass m.(b) Describe an example of such a motion or explain why it is unrealistic.Consider © the possibility of k positive hand (d) the possibility of k negative.

Galileo thought about whether acceleration should be defined as the rate of change of velocity over time or as the rate of change in velocity over distance.He chose the former,so let’s use the name “vroomosity” for the rate of change of velocit
翻译：伽利略想到底加速度应该由速度对时间的变化率还是和空间的变化率来定义.他选择了前者,那么用“vroomosity”用来表示速度对空间的变化率.对于一点质点的匀加速运动,公式这v=vi+at提供了一个速度关于时间的函数.同样地,对于一个相对空间的匀加速运动,公式为v=vi+kx,当x=0时质点的速度为vi.a:找到描述对于一个质量为m的物体的合外力定律.b描述一个这样运动的例子或者解释为什么这是不现实的.最后两问k是什么词看不清.
a:实际上就是用这个牛顿定律求这个公式.F=ma=m(v-vi)/t=mkx/t.由kx+vi=v=dx/dt.dt=1/(kx+vi)dx.t=1/k*ln(kx+vi)-1/k*ln(vi).代入得F=mkx/[1/k*ln(kx+vi)-1/k*ln(vi)].b:看这个公式的复杂性就可以知道了,速度要是和位移的变化率相联系就非常复杂.

我感觉应该是一道很简单的物理题首先依题意 q1 q2=2.5X10^-5C 然后由此题求的是带电量较小的电荷带电量 利用两个电荷之和与之积，求出差的平方