Chapter 20 : Projectiles „„„„„ 417

417

Projectiles

20

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20.1.INTRODUCTION

In the previous chapters, we have been

discussing the motion of bodies, either in horizontal

or vertical directions. But we see that whenever a

particle is projected upwards at a certain angle (but

not vertical), we find that the particle traces some path

in the air and falls on the ground at a point, other than

the point of projection. If we study the motion of the

particle, we find that the velocity, with which the

particle was projected, has two components namely

vertical and horizontal.

The function of the vertical component is to

project the body vertically upwards, and that of the

horizontal is to move the body horizontally in its

Contents

1. Introduction.


2. Important Terms.


3. Motion of a Body Thrown
   Horizontally into the Air.


4. Motion of a Projectile.


5. Equation of the Path of a
   Projectile.


6. Time of Flight of a Projectile
   on a Horizontal Plane.


7. Horizontal Range of a
   Projectile.


8. Maximum Height of a
   Projectile on a Horizontal
   Plane.


9. Velocity and Direction of
   Motion of a Projectile, After
   a Given Interval of Time
   from the Instant of
   Projection.


10. Velocity and Direction of
    Motion of a Projectile, at a
    Given Height Above the
    Point of Projection.


11. Time of Flight of a Projectile
    on an Inclined Plane.


12. Range of a Projectile on an
    Inclined Plane.