Physics

posted by .

A 0.2 kg baseball located at the top of a building which is 100 m above the ground is thrown with an initial velocity 30 m/s at an angle of 30o above the horizontal.

(a) Determine the total energy which the ball will have just after the instant that the ball is thrown.

(b) Determine the maximum height above the ground which the ball will reach during its flight.

  • Physics -

    a. E = 0.5m*Vo^2 = 0.1*30^2 = 90 Joules.

    b. Vo = 30m/s @ 30 Deg.
    Xo = hor = 30*cos30 = 26m/s.
    Yo = ver = 30*sin30 = 15 m/s.

    hmax = ho + (Y^2-Yo^2)/2g
    hmax = 100 + (0-225) / -19.6 = 111.5 m.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A stone is thrown with an initial speed of 15 m/s at an angle of 37 above the horizontal from the top of a 35 m building. If g = 9.8 m/s2 and air resistance is negligible, then what is the magnitude of the vertical velocity component …
  2. physics

    A baseball thrown at an angle of 65.0^\circ above the horizontal strikes a building 16.0 {\rm m} away at a point 5.00 {\rm m} above the point from which it is thrown. Ignore air resistance. a) find the magnitude of the initial velocity …
  3. Physics

    A baseball is thrown from the roof of a 22.3 m tall building with an initial velocity of 13.1 m/s and is directed 50.9 degrees above the horizontal. A)What is the speed of the ball just before it strikes the ground?
  4. Pre-Ap Physics

    A rock is projected from the edge of the top of a building with an initial velocity of 16.3 m/s at an angle of 39 ◦ above the horizontal. The rock strikes the ground a horizontal distance of 90 m from the base of the building. …
  5. Physics ASAP PLEASE

    A baseball is thrown at an angle of 40.0° above the horizontal. The horizontal component of the baseball’s initial velocity is 12.0 meters per second. What is the magnitude of the ball’s initial velocity?
  6. PHYSICS HELP PLEASE!

    A baseball is thrown at an angle of 40.0° above the horizontal. The horizontal component of the baseball’s initial velocity is 12.0 meters per second. What is the magnitude of the ball’s initial velocity?
  7. 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?
  8. Physics

    A baseball is thrown from the rood of a 27.5m tall building with an initial velocity of magnitude 16.0m/s and directed at an angle of 37 degrees above the horizontal. A) Using energy methods and ignoring air resistance, calculate the …
  9. Physics

    A baseball is thrown from the roof of 23.5m -tall building with an initial velocity of magnitude 10.0m/s and directed at an angle of 53.1∘ above the horizontal. a.What is the speed of the ball just before it strikes the ground?
  10. physics

    A baseball is thrown from the roof of a 24.0-m-tall building with an initial velocity of magnitude 10.0 m/s and directed at an angle of 53.1° above the horizontal.

More Similar Questions