Post a New Question

physics

posted by on .

A rifle that shoots bullets at 460 m/s is to be aimed at a target 47.0 m away. If the center of the target is level with the rifle, how high above the target must the rifle barrel be pointed so that the bullet hits dead center? (Neglect air resistance.)

  • physics - ,

    xo=x original vo=v original
    So first in the horizontal direction
    x=xo+vot+.5at^2
    x=vot
    t=47/460=0.102seconds to hit target
    then for vertical direction
    x=xo+vot+.5at^2
    x=.5at^2
    x=.5(9.8)(0.102)^2=0.0512 m above target

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question