Hope this shows! It has all the equations for all of the problems u asked in the comments
Answer:The train travels 105 meters after applying the brakes
Explanation:If he decelerates 1.5 every minute, then he went from 28,5 m/s, to 27.0 m/s, to 25.5 m/s, to 24.0 m/s, after 4 seconds. Add all this together and youll get 105 meters moved in 4 seconds after he hit the brakes, I dont have a notebook on me though sorry :/
ohm's law V=IR
V=24x11=240+24=264V
About mains and dangerous needs insulating
There are two main types of electrical charges.
Answer:
-14 m/s
Explanation:
Saki's initial velocity is:

where we put a negative sign because the problem tells us to use a coordinte system in which rightward is positive, while Saki's initial velocity is towards the left.
Saki's acceleration due to the breeze is:

Where again, we put a negative sign since the acceleration is leftward.
In order to find Saki's velocity after t = 6 s, we can use the following equation:

And substituting all the numbers, we get

and the negative sign means the new velocity is leftwards.