Recent content by Lis277

Does the fact that the train is moving at a constant velocity make any difference?

oops, made a mistake vf^2-vi^2=2ad vf=0 vi=16 a=? d=1.1km-->1,100m (0)^2-(16)^2=2(1100)a -256=2200a -0.11636m/s=a

acceleration would be 0.2327m/s

since acceleration is normally in the units of meters and i was given a distance in km, do i have to convert to m before plugging the distance in the equation to find acceleration?

a=-116.36?

I would assume it only has one mass

Homework Statement The power driving the railroad engine is switched off. The engine stops, from its speed of 16m/s^-1, without braking in a distance of 1.1km. A student hypothesis that the horizontal resistive force is constant. Based on the hypothesis, calculate the mass of the railway...