Post a New Question

physics

posted by .

A soccer ball is kicked into the air at an angle of 38 degrees above the horizontal. The initial velocity of the ball is +30.0m/s. How long is the ball in the air?

-What is the maximum height reached by the ball?
-What is the horizontal distance traveled by the ball?

  • physics -

    Vi = 30 sin 38

    h = Ho + Vi t - 4.9 t^2
    h = 0 at ground
    so
    0 = 0 + Vi t - 4.9 t^2
    t (Vi-4.9 t) = 0
    t = 0 (it started at ground
    t = Vi/4.9 when it hit ground again

    max h is when v = 0
    v = Vi -9.8 t
    0 = Vi -9.8 t
    t = Vi/9.8 at top *** this should be half the whole time in the air***
    h = 0 +Vi t - 4.9 t^2
    using that t which should be half the total t

    u = 30 cos 38
    d = u t where t is the total time in the air (not the half time you used for part B)

  • physics -

    3.766 seconds, 25.544 m, 88.886 m,

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A tennis player hits a ball at ground level, giving it an initial velocity of 24 m/s at 57 degrees above the horizontal. (a) what are the horizontal and verticla components of the ball;s initial velocity?
  2. Physics

    A tennis player hits a ball at ground level, giving it an initial velocity of 24 m/s at 57 degrees above the horizontal. (a) what are the horizontal and verticla components of the ball;s initial velocity?
  3. Physics

    A soccer player kicks a ball into the air at an angle of 36 degrees above the horizontal with a speed of 30m/s a.How long is the soccer ball in the air?
  4. physics

    a soccer ball is kicked into the air at an angle of 38 degrees above the horizontal. The initial velocity of the ball is 30.0m/s. How long was the ball in the air?
  5. physics

    a soccer ball is kicked into the air at an angle of 38 degrees above the horizontal. The initial velocity of the ball is 30.0m/s. How long was the ball in the air?
  6. physics

    a soccer ball is kicked into the air at an angle of 38 degrees above the horizontal. The initial velocity of the ball is 30.0m/s. How long was the ball in the air?
  7. physics

    A soccer player kicks a ball into the air at an angle of 34 degrees above the horizontal . The initial velocity of the ball is 25 m/s How long is the soccer ball in the air ?
  8. Physics

    A soccer player kicks a ball into the air at an angle of 36.0 Degrees above the horizontal. The initial velocity of the ball is +30.0 m/s. 1).How long is the soccer ball in the air 2).What is the horizontal distance traveled by the …
  9. Physics - 2-D kinematics

    A soccer ball is kicked with an initial horizontal velocity of 20 m/s and an initial vertical velocity of 16 m/s. I've calculated: Initial Speed: 25.61 m/s Angle: 38.66 degrees Maximum Height it reaches: 13.06 m Distance kicked: 65.29m …
  10. physics

    a soccer player kicks a ball into the air at an angle of 36.0 above the horizontal. the initial velocity of the ball is +30.0m/s. how long is the soccer ball in the air?

More Similar Questions

Post a New Question