Projectile Motion

Cards (15)

  • Projectile motion is a motion in which an object is thrown near the earth’s surface, and it moves along the curved path under the action of gravity only.
  • Any object which is projected in the air is called as projectile.
  • The point from which the object is projected in air is called as point of projection.
  • The velocity with which an object is projected in air is called as velocity of projection.
  • The parabolic path followed by a projectile in air is called its trajectory.
  • Time taken by the projectile to cover the entire trajectory is called as time of flight.
  • It is the maximum vertical distance travelled by the projectile from the ground level during its motion.
  • It is the horizontal distance travelled by the projectile during entire motion.
  • Sir Isaac Newton (1643-1727) an English scientist and mathematician famous for his discovery of the law of gravity also discovered the three laws of motion.
  • Newton's First Law:
    • Obiects in motion tend to stay in motion and objects at rest tend to stay at rest unless acted upon by an unbalanced force.
    Newton's Second Law:
    • Force equals mass times acceleration (F = ma).
    Newton's Third Law:
    • For every action there is an equal and opposite reaction.
  • Acceleration: a measurement of how quickly a n object is changing speed.
  • Force is directly proportional to m a s s a n d acceleration.
    Imagine a ball of a certain mass moving at a certain acceleration.
  • nertia: the tendency of an object to resist changes in its state of motion
  • Velocity: The rate of change of a position along a straight line with respect to time
  • Force: Push or Pull (strength or energy)