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  1. E

    Three Displacement Vectors

    Homework Statement Use the component method to add the following displacement vectors. D1= 25 m [N 30 W], D2= 30 m [N 40 E], D3= 35 m [S 25 W] Homework Equations I know all of the equations for vx, vy and the five equations. I also know sin, cos, tan and velocity, displacement...
  2. E

    Motion Acceleration Equations

    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...