draw position time graph for variable velocity
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▪️ What does the slope represent onThe slope of a velocity graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant.
▪️It was learned earlier in Lesson 4 that the slope of the line on a velocity versus time graph is equal to the acceleration of the object. ... If the object is moving with an acceleration of -8 m/s/s, then the slope of the line will be -8 m/s/s.
▪️Retardation or deceleration is negative change in velocity per unit time. So, Here, retardation=change in velocity/time(seconds). Retardation= -acceleration.
▪️Acceleration can be calculated by dividing the change in velocity (measured in metres per second) by the time taken for the change (in seconds). The units of acceleration are m/s/s or m/s 2. This is the gradient of the purple line.
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