Atrain travels 20 km in 30 minutes. calculate the speed of the train in m/s

11.11 m/s

Explanation:

distance = 20km= 20000m

time = 30 mins= 1800sec

Speed = distance/time

Speed = 20000/1800

Speed = 11.11m/s

your answer is yx

hope this

~mia

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.