A girl of mass 35 kg, on a bicycle, accelerates from rest and travels down a slope in a straight line. The girl does not use the pedals. Fig. 1.1 shows that the gradient of the slope is constant. [Figure 1.1]

1. (a)Calculate the resultant force on the girl when she is accelerating at 2.6m/s².[2]
2. (b)(i)On Fig. 1.2, sketch a speed-time graph for the girl from when she starts moving until she is travelling at a constant speed. [Figure 1.2][2]
3. (b)(ii)State how the distance travelled is found from a speed-time graph.[1]

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