A 60 kg student weighs 600 N. He does a bungee jump. The bungee cord becomes straight and starts to stretch when he has fallen 50 m. (a) Complete the sentence by putting a cross (✗) in the box next to your answer. He first stops moving A before all the energy has disappeared B before the bungee cord starts to stretch C when the bungee cord is stretched the most D when the elastic potential energy is zero (b) Complete the sentence by putting a cross (✗) in the box next to your answer. When his speed is 10 m/s his momentum is A 600 kg m/s B 3 000 kg m/s C 6 000 N m/s D 30 000 N m/s

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A 60 kg student weighs 600 N - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1

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A 60 kg student weighs 600 N. He does a bungee jump. The bungee cord becomes straight and starts to stretch when he has fallen 50 m. (a) Complete the sentence by p... show full transcript

Worked Solution & Example Answer:A 60 kg student weighs 600 N - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1

Step 1

Complete the sentence: He first stops moving

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Answer

The correct option is C when the bungee cord is stretched the most. This is because the student experiences maximum deceleration at that point, where all his kinetic energy has been converted into elastic potential energy.

Step 2

Complete the sentence: When his speed is 10 m/s his momentum is

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Answer

The correct option is A 600 kg m/s. Momentum (p) is calculated using the formula: $p = m imes v$ where 'm' is the mass and 'v' is the velocity. In this case, the mass of the student is 60 kg, so: $p = 60 ext{ kg} imes 10 ext{ m/s} = 600 ext{ kg m/s}$

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A 60 kg student weighs 600 N - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1

Worked Solution & Example Answer:A 60 kg student weighs 600 N - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1

Complete the sentence: He first stops moving

Complete the sentence: When his speed is 10 m/s his momentum is

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