Projectile_Motion_ppt.ppt

Projectile_Motion_ppt.ppt

• 1.
  PROJECTILE MOTION SEMINAR PRESENTATION SESSION-2017-18 PRESENTEDBY-ANAND BIJARNIA (151002003 )
• 2.
  Projectile Motion When aBody in A free motion (moving through the air without any forces other than gravity and air resistance) it is called a Projectile Motion. Normally air resistance is Ignored so the only force acting upon the body is Gravity. Gravity is a Uniform force acting downwords.
• 3.
  Types of ProjectileMotion  Horizontal  Motion of a ball rolling freely along a level surface  Horizontal velocity is ALWAYS constant  Vertical  Motion of a freely falling object  Force due to gravity  Vertical component of velocity changes with time  Parabolic  Path traced by an object accelerating only in the vertical direction while moving at constant horizontal velocity
• 4.
  Velocity Acceleration  Thereis only acceleration in the vertical direction,the only velocity in the horizontal direction is constnt.The vertical motion of the projectile will be free fall.  The acceleration will be equal to 9.8m/s^2  The horizontal velocity of projectile will remail unchanged throughout the motion.  The vertical component changes linearly because of acceleration due to gravity is constant.
• 5.
  Equations  X- Component Y- Component  Vectors t v x x xi i f   gt v v y g v v gt t v y y yi yf yi yf yi i f         2 2 1 2 2 2 ) sin( ) cos(   i yi i xi v v v v  
• 6.
  Factors Affecting ProjectileMotion  What two factors would affect projectile motion?  Angle  Initial velocity Initial Velocity Angle
• 7.
  Equations in horizontaland vertical motions Horizontal Vertical
• 8.
  Height of anProjectile  The greatest height that the object will reach is known as height of projectile .  It does not depend on mass of the object.
• 9.
  Range of anProjectile  The range of an projectile is the distance covered by the body till it comes to rest in x-axis.  It does not depend on mass of the object.
• 10.
  Time of flightof a Projectile  The total time for which the projectile remains in air is known as time of flight.
• 11.
  Horizontal projectile  Horizontalprojectiles are easiest to work with  Only formula used is X=ut
• 12.
  Horizontal Projectile  Anobject in free fall will accelerate at 9.81 meters per second squared downwards.  When investigating the trajectory of a projectile we can look at the horizontal motion and the vertical motion separately.
• 13.
   In thehorizontal direction, there are no external forces. Therefore, there is no acceleration. Velocity in the horizontal direction is constant. This is because all horizontal velocity vectors have same magnitude.  In the vertical direction, the only force acting on the projectile is gravity. Therefore the object will accelerate at a rate of 9.81 meters per second squared downwards. Again, we see this is the diagram at the right. The vertical velocity vectors increase in magnitude as the projectile continues to move along its trajectory. Horizontal Projectile
• 14.
  Trajectory of aProjectile  The path described by an particle when its projected at a certain angle and with initial velocity,v its known as Trajectory of a Projectile.  Mathematically, a trajectory is described as a position of an object over a particular time. A much simplified example would by a ball or rock thrown upwards, the path taken by the stone is determined by the gravitational forces and resistance of air.
• 15.
  Trajectory Equation