quiz4

  1. Two forces act on a 20kg object. The first force is 20N in a direction of 45 degrees above the horizontal. The second force is 40N in a direction of 180 degrees (due left). What is the Net force acting on the object?
    a) 60N
    b) 40N at 45degrees
    c) 29.47N at -28.67degrees
    d) 29.47N at 151.33degrees
    e) 40N at 151.33degrees
    No answer given yet
  2. What is the acceleration acting on the object in problem one after 5.00seconds?
    a) 20kg
    b) 20N
    c) 29.47m/(s^2)
    d) 1.474m/(s^2) at -28.68 degrees
    e) 1.474m/(s^2) at 151.33 degrees
    No answer given yet
  3. The initial velocity of the object above was 10m/s along the horizontal direction. What is the velocity after 5.00s of acceleration described in problems 1 and 2.
    a) -10m/s at 180 degrees
    b) 5.00m/s at 45.1 degrees
    c) 10.42 m/s at 135 degrees
    d) 7.375 m/s at 45 degrees
    e) 1.474 m/s at 151.33 degrees
    No answer given yet