At point B, the child in (c) applies the brake with a constant force to maintain a constant velocity. Point C is 18 m from point B , as shown in Fig. 2.2. Fig. 2.2 (not to scale) The work done by the braking force between B and C is 250 J . (i) Determine the magnitude of the braking force. $$\[ \text { force }= \]$$ .................................................. N (ii) On Fig. 2.3, sketch the variation of the kinetic energy of the child and scooter with distance travelled from point $$\(A\)$$ to point $$\(C\)$$. Numerical values for kinetic energy are not required. Fig. 2.3

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