A school bus starts from Rest House Stop and reaches the school

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A school bus starts from Rest House Stop and reaches the school, covering a straight-line distance of 18 km18\,\text{km} in 25 min25\,\text{min} without changing its speed. (i) Calculate the speed of the bus in km/h\text{km/h}. (ii) Express this speed in m/s\text{m/s}. (iii) If a distance–time graph were drawn for this journey, what numerical value would the slope of the straight line represent? State its value using the result obtained in part (i).

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