Distance-time graphs ... find the average of the speeds for sections A, B and C. The gradient in section E is -8. The speed is 8 miles per hour because speed is always a positive value. The ...
gradient = \(\frac{change~in~y}{change~in~x}\) = \( \frac{change~in~distance}{change~in~time} \) = \(\frac{change~in~metres}{change~in~seconds} \) = m/s. The gradient ...
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