Answer:
The data given in this numerical problem are in different units. So, we should first convert km unit into m unit.
For first car:
Initial velocity
Final velocity,
Time taken,
For second car :
Initial velocity,
Final velocity,
Time taken,
The distance travelled by a moving body is given by the area under its speed-time graph.
So,
Distance travelled by the first car = Area of the triangle
Similarly,
Distance travelled by the second car = Area of triangle COD
Thus, the second car travels 4.1 m and the first car travels 36 m before coming to rest. So, the second car travelled farther after the brakes were applied.
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