Find solution
Calculating the angular acceleration.

Calculating Acceleration?

  • How would you calculate the acceleration of a space shuttle in m/s^2 when this is the information given: In the 74 seconds after lift-off, the space shuttle Challenger travels 36km. Assuming constant acceleration, calculate the acceleration of the shuttle in m/s^2. Please help! The answers say it is 13m/s^2 [forward] I can never get that answer :S

  • Answer:

    You need to use the formula x=x0+v0t+(1/2)*a*t^2 x=final position , x0=initial position , v0=initial velocity , t=time , a= acceleration You know that the final position is 36km which is 36000m, the initial position is zero, the initial velocity is zero, and the time is 74 seconds. So after cancelling out the zero parts you are left with the formula x=(1/2)*a*t^2 ---> a=2x / t^2 a=2(36000m) / (74s)^2 a=13.15 m/s^2

Jack Bauer at Yahoo! Answers Visit the source

Was this solution helpful to you?

Other answers

I'd use the "no final velocity" constant acceleration kinematics equation x_f = x_i + (v_i) t + ½a t² If we choose the origin to be at the launch point, and positive upward, then x_f = 36 km = 36000 m x_i = 0 m v_i = 0 m/s t = 74 s Substitute the zero values and solve for "a". x_f = 0 + 0 + ½a t² a = 2x_f / t² = 2(36000 m) / (74 s)² = 13 m/s² (Um ... by "no final velocity" I meant that the equation doesn't involve the final velocity, not that the space shuttle has "no final velocity".)

E

Related Q & A:

Just Added Q & A:

Find solution

For every problem there is a solution! Proved by Solucija.

  • Got an issue and looking for advice?

  • Ask Solucija to search every corner of the Web for help.

  • Get workable solutions and helpful tips in a moment.

Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users. We always provide the most suitable and complete answer to your question at the top, along with a few good alternatives below.