projectile motion

Cards (28)

  • Air resistance can affect the trajectory and range of a projectile.
  • A projectile's path can be described using two equations: one for x-coordinate (horizontal) and another for y-coordinate (vertical).
  • Projectiles are objects that move through space under the influence of gravity alone, with no other forces acting on them except air resistance.
  • The weight force is directed vertically downward towards the ground due to the gravitational pull of the Earth.
  • The angle between the horizontal line and the initial velocity vector is called the launch angle.
  • The angle of projection affects the range of a projectile.
  • Projectiles follow parabolic paths due to gravity acting on them.
  • The angle at which an object is launched affects its horizontal distance traveled, with higher angles resulting in shorter distances.
  • The horizontal component of velocity remains constant throughout the flight of a projectile.
  • The maximum height reached by an object is determined by its initial speed and angle of launch.
  • Time of fall/flight time is independent of the horizontal velocity component
  • Increasing the vertical height will increase flight time since horizontal velocity is constant.
  • 45 degrees is the angle that produces the furthest range as it is in the middle of horizontal and vertical components of velocity
  • If the projectile is launched from a higher platform, a reduced angle (42-44 degrees) will produce a greater range
  • Drag force opposes the direction of travel
  • Drag is directly proportional to V^2 and A
  • Air resistance will oppose velocity
  • Lesser height = shorter range because the time of flight is reduced
  • Projectiles have a gravitational force that is constant in magnitude and direction.
  • The horizontal component of displacement remains unchanged throughout the motion.
  • The zenith only has a horizontal velocity as it remains constant
  • If an object is thrown at an angle, its maximum height is reached when the vertical speed is zero.
  • If the cross sectional area of an object is greater, it has a greater air resistance; therefore reducing its velocity
  • Air resistance increases with increasing surface area
  • Drag coefficient (D) depends on shape and orientation of the object
  • Terminal velocity is achieved when the weight of the object equals the aerodynamic drag force acting upon it
  • Time decreases from the affects of air resistance.
  • When air resistance is acting, time is reduced going to the zenith but slightly increased when going from the zenith to the ground but overall time is still reduced.