Motion Acceleration Equations

  • #1

Homework Statement



Within 4 sec of liftoff, a spacecraft that is uniformly accelerating straight upward from rest reaches an altitude of 450 m [up]. What is the spacecraft's acceleration?

Homework Equations



The five key equations, plus the velocity, speed, and acceleration equations

The Attempt at a Solution



I don't know what the altitude would be (Displacement? Distance?), so I can't solve the equation with the five key equations.
 

Answers and Replies

  • #2
rock.freak667
Homework Helper
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Do you know an equation from the key equations that involves displacement+velocty+time+acceleration?

Hint: displacement = ??
 
  • #3
Thank you so much!
 

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