Tuesday

September 23, 2014

September 23, 2014

Posted by **Kendall** on Tuesday, January 3, 2012 at 6:17pm.

Calculate how long a de-orbit burn must last in minutes and seconds to achieve the Shuttle’s change in altitude from 205 miles to 60 miles at perigee.

- Physics -
**Eric**, Tuesday, February 5, 2013 at 12:07amMethod 1

Step 1: Solve for acceleration

From F=ma, rearrange to a=F/m

a=F/m= (53000 N)/(1.13 x 〖10〗^5 kg)= .469026549 〖m/s〗^2

Step 2: Solve for time

t=∆v/a=(88.4 m/s)/(.469026549 〖m/s〗^2 )=188.4754716 seconds

Step 3: Convert seconds to minutes

(188.4754716 seconds)/60=3.141257859 minutes

Step 4: Convert minutes to seconds

.141257859 × 60=8.47547154 seconds

Final answer:

It would require 3 minutes and 8 seconds of burn time to change the Shuttle’s altitude from 205 miles to 60 miles at perigee.

**Answer this Question**

**Related Questions**

Physics - The De-orbit Burn The Shuttle must reduce its velocity at a pre-...

physics - A de-orbit burn, similar to that presented in the previous math ...

LA - If the burn is large or involves the face, feet, groin, or buttock, see a ...

Physics - A test rocket is launched vertically from ground level (y=0m), at time...

Physics - The shuttle must perform the de-orbit burn to change its orbit so ...

Physics - The shuttle must perform the de-orbit burn to change its orbit so ...

PHYSICS IMP PLS - Consider a rocket in space that ejects burned fuel at a speed ...

Physics - 1. If the change in position delta(x) is related to velocity v (w/ ...

understanding hospital billing - I need 2 CPT codes for this question. I think I...

Math - Calculate how long a de-orbit burn must last in minutes and seconds to ...