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 is the ball in the air?

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

  1. 👍
  2. 👎
  3. 👁
  1. 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)

    1. 👍
    2. 👎
  2. 3.766 seconds, 25.544 m, 88.886 m,

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A soccer ball kicked on a level field has an initial vertical velocity component of 15 meters per second. Assuming the ball lands at the same height from which it was kicked, what is the total time the ball is in the air? [Neglect

  2. physics

    A 0.5 kg soccer ball is kicked with a force of 50 Newtons for 0.2 sec. The ball was at rest before the kick. What is the speed of the soccer ball after the kick?

  3. math

    a soccer ball is kicked from the ground. after travelling horizontal distance of 35m,it just pass over a 1.5m tall fence before hitting the ground 38m from where it was kicked. Determine the equationi of a quadratic function that

  4. Physics (HELP)

    A soccer ball is kicked from the ground and lands 2.2 seconds later. If the ball was kicked at an angle of 55 degrees above horizontal, what was the ball's total initial speed?

  1. physics

    1. A certain projectile is launched with an initial speed v0. At its highest point its speed is v0/6. What was the launch angle? 2. The "hang time" of a punt is measured to be 3.50 s. If the ball was kicked at an angle of 61.0°

  2. Physics Kinematics.

    A ball is kicked with an initial velocity of 21 m/s in the horizontal direction and 16 m/s in the vertical direction. (Assume the ball is kicked from the ground.) (a) At what speed does the ball hit the ground? (b) For how long

  3. Physics

    A soccer ball is kicked with a speed of 9.95m/s at an angle of 35.0∘ above the horizontal.If the ball lands at the same level from which it was kicked, how long was it in the air?

  4. 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:

  1. Physics Honors

    A soccer ball is kicked horizontally off a 22.0 meter high hill and lands a distance of 35 meters from the edge of the hill. Determine the initial horizontal velocity of the soccer ball.

  2. 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? b. What is the horizontal distance traveled by the ball? c. What is the

  3. Physics

    Emmy kicks a soccer ball up at an angle of 45° over a level field. She watches the ball\'s trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. Assume that air resistance is

  4. mathematics

    A soccer ball is kicked at ground level with a speed of 30 m/s at an angle of 35 degree to the horizontal. how long does it takes for the ball to hit the ground?

You can view more similar questions or ask a new question.