9709 P45 - Jun 2026 - Q7 - 6 marks
9155
A cyclist travels along a straight horizontal road at constant acceleration \(a\text{ m s}^{-2}\). She passes \(A,B,C,D\) in that order, with \(AB=50\text{ m}\) and \(CD=100\text{ m}\). The journey times for \(AB,BC,CD\) are each 10 s. Find \(a\) and the increase in speed between \(A\) and \(D\). [6]
