If a space ship is traveling with a constant acceleration of 75 m/s^2 and travels for three weeks, how far did it travel and what was it's velocity before it stopped?

Guest Dec 18, 2019

#1**+1 **

You do not state an initial velocity, so let's assume it is 0.

vf = vo + at vo = original velocity = 0

vf = at a is in seconds 75m/s^2 t is in weeks and one or the other has to match

convert weeks to seconds 3600 sec/hr x 24 hr/day x 21 day = t

multiply this by a to find the final velocity (divide by 1000 m/km to get km/sec)

Then for the distance , starting at xo = 0

xf = xo + vot + 1/2 a t^2 vo and xo = 0 make sure a and t are in the same time units..... Done !

ElectricPavlov Dec 18, 2019