In the 74s after lift-off, the shuttle Challenger travels 36km. Assuming constant acceleration, calculate the acceleration of the shuttle in m/s^2.
t = 74s
d = 36km
Which equation would I use to solve this? None of the equations I have will work, and I'm not sure which kind of velocity to calculate (instantaneous, average, initial, final). Everything I tried so far failed. The correct answer (according to my sheet) is 13m/s^2.
Thanks for the help, got it right finally.
Though, the second part of the question asks to find the speed of the shuttle in km/h. I did the following.
S = a(t)
S = 13m/s^2(74s)
S = 962m/s
S = 962(.001km)(.0003h)
S = 962(3.33km/h)
S = 3203.46km/h.
The answer on the page however, says 3500km/h. Don't know if this was due to rounding or not, though I doubt that based on the high inaccuracy.
I also tried this.
S = d / t
S = 36km / 74s
S = 0.49km/s
S = 0.49km/(0.0003h)
S = 0.000147km/h
I thought for sure this one would work, but I guess not.
What would be a good equation for calculating the shuttle's speed?