GCSE Questions: ForcesQ15. The diagram shows an athlete on starting blocks waiting to start a 100 metre race. (a) Complete the following sentence. The force from the athlete pushing backwards on the starting blocks is _ _ _ _ _ _ _ the force from the starting blocks pushing forwards on the athlete. Choose the answer from the box:
[1 mark] Here is a distancetime graph for the athlete from the moment the race starts. Three parts of the distancetime graph are labelled J, K and L. X represents 'not applicable' Choose a letter relating to the athlete:
[2 marks] (b) What distance does the athlete travel after the end of the race before stopping? [1 mark] (c) Calculate the average speed of the athlete between the start and finish of the 100 metre race. [3 marks] (d) The athlete runs faster than a typical person. Tick the box that gives the average running speed of a typical person in metres per second.
[1 mark] [8 Marks TOTAL] 
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