= 3.58… (m) 1.1b x A1 Accept awrt 3.6 (m) The pole vaulter can leave the ground between 3.6 m and B1 3.2a 6.8 m from the bar. (7) 3di Allows the person to be treated as a single mass and allows the B1 3.4 3rd effects of rotational forces to be ignored. Understand assumptions common in mathematical modelling. (1) 3dii The effects of air resistance can be ignored. B1 3.4 3rd Understand assumptions common in mathematical modelling. (1) (15 marks) Notes 3b For the first method mark, accept their answer to part a divided by 2. Continue to award marks for a correct answer using their initial incorrect value. 3c Accept 3.6 6.8 x ⩽ ⩽ Pearson Progression Step Q Scheme Marks AOs and Progress descriptor 4a an attempt to find the distance from to For example, M1 3.1b A B. is seen. Makes an attempt to find the distance from to For M1 3.1b B C. example, is seen.
x = 3.58… (m) Accept awrt 3.6 (m) A1 1.1b The pole vaulter can leave the ground between 3.6 m and 6.8 m from the bar. B1 3.2a (7) 3di Allows the person to be treated as a single mass and allows the effects of rotational forces to be ignored. B1 3.4 3rd Understand assumptions common in mathematical modelling. (1) 3dii The effects of air resistance can be ignored. B1 3.4 3rd Understand assumptions common in mathematical modelling. (1) (15 marks) Notes 3b For the first method mark, accept their answer to part a divided by 2. Continue to award marks for a correct answer using their initial incorrect value. 3c Accept 3.6 ⩽ x ⩽ 6.8 Q Scheme Marks AOs Pearson Progression Step and Progress descriptor 4a an attempt to find the distance from A to B. For example, is seen. M1 3.1b Makes an attempt to find the distance from B to C. For example, is seen. M1 3.1b