physics

posted by .

an arrow of mass .04 kg is pulled back 10 cm in the bow, having a force of 25.2 N. It is released 1.5m from the ground...how far will the arrow fly?
(all of the energy from pulling it back converts into the flying arrow)

  • physics -

    This problem is missing information.

    If the pull force is constant:
    pulled 0.10 meters * 25.2 = 2.52 Joules
    .5 m u^2 = 2.52 Joules
    solve for u

    however if the bow behaves like a spring

    then average force = 1/2 * max force
    and we get 1.26 Joules

    You do not say which

    If you fire horizontally
    solve vertical problem to find time in air
    (1/2) g t^2 = 1.5 meters
    solve for t
    then
    horizontal distance = u t

    If you fire up at 45 degrees (max range) it is a little more complicated but again solve the vertical problem for time, then do the horizontal problem for distance.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    Robin Hood is walking through Sherwood Forest when he comes upon Sheriff of Nottingham. The Sheriff tells Robin Hood that he is going to arrest hum for numerous misdeeds. Robin pulls out his bow, loads an arrow, puls the bow back 0.70 …
  2. physics

    An arrow with a mass of 0.12 kg is pulled back in a bow. After being held still, it is let go, moving at 23m/s after the 0.51meters in which the arrow is in contact with the bow string?
  3. physics

    Robin exerts a force of 100 N in pulling back his bow by 0.5 m. He fires the arrow (mass=0.2 kg) vertically upwards. a-How much energy is stored in his bow. b-How high does the arrow go?
  4. Ap physics

    a 64 gram arrow is pulled back 29 cm on a bow, with a maximum force of 54-N. how much work is done on the arrow?
  5. Ap physics

    a 64 gram arrow is pulled back 29 cm on a bow, with a maximum force of 54-N. how much work is done on the arrow?
  6. physics

    A bow with a spring constant of 398 N/m has an arrow placed in it and pulled back a distance of 0.6 m. If the arrow is shot straight up in the air how high will it go?
  7. Physics

    An archer's bow applies a force to an arrow over a distance of 19cm, while firing it vertically upwards. If the arrow achieves a speed of 8.0m/s and the efficiency of the bow is 75%, determine the average force applied to the arrow …
  8. Physics

    a full draw is the maximum distance that an archer can pull an arrow. Using the recurve bow shown below, a particular archer requires an average force of 130N to pull a full draw of 70.0cm. (when the arrow is relaxed in the bow, there …
  9. Physics

    An arrow is shot by stretching a bow through a distance of 0.9m by applying a force of 150N, the mass of the arrow is 1.7kg. Using the conservation of energy, calculate the speed with which the arrow leaves the bow.
  10. Math Calc

    John was wondering at what speed an arrow leaves a bow when it is released. So he went to a field and shot the bow at an angle of 45 degrees. The arrow hit the ground at a distance of 600 feet. Ignore air resistance. For simplicity, …

More Similar Questions