A space vehicle deploys its re-entry parachute when it's traveling at a vertical velocity of -150 meters/second (negative because the parachute is going down.) It comes to rest at 0 meters/second after 30 seconds. What's the average acceleration of the shuttle during this time span?

a) -0.2 meters/second^2
b) -5 meters/second^2
c) 0.2 meters/second^2
d) 5 meters/second^2

Question

A space vehicle deploys its re-entry parachute when it's traveling at a vertical velocity of -150 meters/second (negative because the parachute is going down.) It comes to rest at 0 meters/second after 30 seconds. What's the average acceleration of the shuttle during this time span?

a) -0.2 meters/second^2
b) -5 meters/second^2
c) 0.2 meters/second^2
d) 5 meters/second^2

anonymous · Answer

You can use this.$$V _{final} =V_{ initial} + a*t    $$