A car moving along a straight line at a speed of 90km/h stops in 10 seconds after the brakes are applied. (a) Find the acceleration, assuming it to be a constant. (b) Plot the graph of speed versus time. (b) Using graph, find the distance covered by the car after the brakes are applied.
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An object can have zero displacement even when it has moved a distance and shown some displacement. This takes place when the final position of an object coincides with its own initial position. Let's say, if a person moves around circular area and comes back to the place from where he started then the displacement will be zero.
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