Recent content by cedwar71

  1. C

    Displacement Vector of Minute Hand on Watch: 8:00 to 8:20 & 8:00 to 9:00

    The minute hand on a watch is 2.0 cm in length. What is the displacement vector of the tip of the minute hand From 8:00 to 8:20 a.m.? From 8:00 to 9:00 a.m.?
  2. C

    Calculate Sprinter's Speed in 100m Dash in 10s

    A sprinter can accelerate with constant acceleration for 3.70 before reaching top speed. He can run the 100-meter dash in 10 s. What is his speed as he crosses the finish line?