a car start from rest after 5 sec and accelerate uniformly for 10 sec before attaining a speed of 20 m/s. if it maintain this speed for the next 5 sec : draw a sketch graph to describe the journey ,use the sketch diagram to determine the uniform of acceleration. the total distance covered ,the average velocity.
The uniform of acceleration:
Total distance covered by the car is equal to area below the velocity curve:
The average speed:
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