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Chapter 7 On the Move (7.1 (Definitions (Displacement- Distance in a given…

- - - - Distance in a given direction
      - Can have negative gradient
    - - Can't have negative gradient
  - - - Speed in a given direction
      - Gradient= acceleration
      - Area between line and x-axis is displacement- can be +ve or -ve
      - Total displacement is positive area + negative area
- - - - Motion 1: Acceleration due to gravity
      - Motion 2: Deceleration in the sand
      - Stage 1: Calculate the final velocity
      - Stage 2 Calculate the declaration when the ball hits the sand
- - - - Acts in opposite direction
      - Increases as projectiles's speed increases
      - Reduces horizontal speed and range
      - Reduces max. height for the projectile if initial direction is above the horizontal and makes descent steeper than ascent