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MOTION IN TWO DIMENSION, Definition : Studies of motion of an objects…

- - - - Uniformly Accelerated Motion
        
        v = u + at
        
        s = (1/2)(u+v)t
        
        s = ut + (1/2)a(t)^(2)
        
        v^2 = u^2 + 2as
      - Constant velocity , a = 0
    - - scalar quantity
      - Definition : Length of actual path between two points.
        
        :red_cross: Direction
    - - -vector quantity
        -S.I unit , meter (m)
      - Definition : The distance between initial point and final point in a straight line.
        
        :!:IMPORTANT :!:
        Distance traveled is measured along the actual path
        :arrow_left: (-)
        :arrow_right: (+)
        :arrow_up:(+)
        :arrow_down:(-)
    - - speed = (change of distance)/(time interval)
    - - Definition : the rate of change of displacement
      - Same direction of the change in displacement :star:
      - Instantaneous velocity , V
        
        The instantaneous rate of change of displacement
      - Gradient of s-t graph = velocity
    - - Average acceleration
        
        Defined as the rate of change of velocity
        
        Direction is same as direction of motion
        
        Velocity , changes at a constant rate and has a fixed direction.
        :arrow_forward: acceleration , uniform
      - Instantaneous acceleration
        
        Instantaneous rate of change of velocity
      - Deceleration
        
        negative acceleration
        -speed of object decreases with time
      - Gradient of v-t graph = acceleration
    - - Velocity versus time graph
        
        Displacement = area under the v-t graph :red_flag:
      - Displacement against time graph
        
        Gradient , constant
        
        uniform velocity
        
        Gradient , exponential
        
        velocity increases with time
        
        Q = velocity is zero
        R = direction of velocity is changing (negative gradient)