Position velocity acceleration

  1. The position of a particle moving along a straight line is given by:


    where t is measured in seconds and s in meters.
    1. Find the position of the particle at: t=0,1,2,3,4,5,6,7, and draw a diagram to illustrate the positions of the particle.
    2. Find the velocity at time t.
    3. Find the velocity of the particle at: t=1,3,5,7.
    4. When is the particle:
      i) at rest?
      ii) moving forward (that is, moving in the positive direction)?
      iii) moving backward (that is, moving in the negative direction)?
      Draw a diagram to illustrate the motion of the particle.
    5. Find the total distance traveled by the particle during the first 7 seconds.
    6. Find the acceleration at time t.
    7. Compare the velocity and acceleration of the particle at: t=1,3,5,7, and determine whether the particle is speeding up or slowing down at each instant.
    8. Graph the position, velocity, and acceleration functions for
      0t7.0 \leq t \leq 7.
    9. When is the particle:
      i) speeding up?
      ii) slowing down?