5. A cyclist, Laura, is travelling in a straight line on a horizontal road at a constant speed of \(25 \mathrm {~km} \mathrm {~h} ^ { - 1 }\) A second cyclist, Jason, is riding closely and directly behind Laura. He is also moving with a constant speed of \(25 \mathrm {~km} \mathrm {~h} ^ { - 1 }\)

1. The driving force applied by Jason is likely to be less than the driving force applied by Laura. Explain why.
2. Jason has a problem and stops, but Laura continues at the same constant speed. Laura sees an accident 40 m ahead, so she stops pedalling and applies the brakes.
   She experiences a total resistance force of 40 N
   Laura and her cycle have a combined mass of 64 kg
3. 1. Determine whether Laura stops before reaching the accident. Fully justify your answer.
      [0pt] [4 marks]
4. (ii) State one assumption you have made that could affect your answer to part (b)(i).