Recent content by john stewart

  1. J

    Velocity,average velicity,distance

    my book has many formulas for constant acceleration I don't know whick one to use
  2. J

    Projectile Motion: Initial Speed and Maximum Height Calculations

    I have been overwelmed by all the kenimatic formulas and I'm not sure which one to use or even how to use some of them
  3. J

    Magnitude and direction of velocity

    a soccer ball is kicked with an initial speed of 10.2 m/s in a direction 25 degrees above the horizontal. Find the magnitude and direction of its velocity 0.250 seconds and 0.500 seconds after being kicked. Is the ball at its gratest height before or after 0.500 seconds?
  4. J

    Projectile Motion: Initial Speed and Maximum Height Calculations

    A vertically moving object projectile reaches a maximum height of 50 meters above its starting position What is the projectiles initial speed? What is the height above the starting point at 3.3 seconds?
  5. J

    Velocity,average velicity,distance

    An automobile is traveling uniformly at 55km/h. It then accelerates at 5.4m/s squared to 75km/h. a. How long does it take to reach this new speed? b. What is the average velocity as it speeds up? c. How far does it travel while accelerating?
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