posted by .

a rifle is fried from the top of a building 220 meters high with an initial velocity of 425 m/s at an angle of 12.0 degrees above the horizontal.
a. how long will it take for the bullet to reach the ground?
b. how far from the base of the building will the bullet strike the ground?
c. what will be the velocity of the bullet just as it reaches te ground?

  • Physics -

    a. you do v^2 = vi^2 = 2aD
    then u do V= vi + at to get time as 20.3
    b. D= Vox*T (415.7)(20.3) = 8440m
    c.430m/s at 14.8* downward

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A ball is thrown upward off the top of a 30-meter high building. 10 meters below the top of the roof, is the top of a window, which is 2 meters high. How long (time) does it take for the ball to pass from top to bottom of the window?
  2. physics

    for this question A bullet is fired from a rifle that is held 1.8 m above the ground in a horizontal position. The initial speed of the bullet is 1120 m/s. Find why is the equation just (.5)(9.8)(t^2)=1.8 why don't we have to take …
  3. physics

    A rifle bullet is fired from the top of a cliff at an angle of 30o below the horizontal. The initial velocity of the bullet is 800 m/s. If the cliff is 80 m high, how far does it travel horizontally?
  4. Physics Honors

    How long will it take a shell fired from a cliff at an initial velocity of 800 m/s at an angle 30 degrees above the horizontal to reach the ground 150 meters below?
  5. Physics, newtons laws

    A bullet is fired with a certain velocity at an angle above the horizontal at a location where g= 10.0 m/s^2. The initial x any components of its velocity are 86.6 m/s and 50 m/s respectively. How long does it take before the bullet …
  6. Physics

    A baseball is thrown with an initial velocity of 37 m/s at an angle of 26 degrees above horizontal, from the top of the building which is 72 meters high. A. What will be the horizontal and vertical components of this baseballs velocity?

    Three marksmen stand at the top of a building. Two of them fire identical bullets out of identical rifles. The bullets leave the rifles with the same initial speed. The last marksman forgot his rifle, so he drops his bullet off the …
  8. physics

    A rifle bullet is fired at an angle of 28.3° below the horizontal with an initial velocity of 177 m/s from the top of a cliff 52.2 m high. How far from the base of the cliff does it strike the level ground below?
  9. Physics

    a projectile is fired horizontally outward from the top of a table. the initial height of the bullet above the ground is 1.5 meters and the bullet travels a horizontal distance of 3.0 meters before striking the ground. Calculate the …
  10. Math - Calculus

    The horizontal velocity is constant. (Ignore air resistance.) Recall from your study of trigonometry that if you release a rock at a speed v in a direction that makes an angle α with the horizontal, then the initial vertical velocity …

More Similar Questions