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A 60 kg student weighs 600 N - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1
Question 2
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 by putting a cross (✗) in the box next to your answer.
Answer
The correct answer is B: before the bungee cord starts to stretch. This is because the student stops moving at the point when the forces become balanced, which is before the bungee cord actually starts stretching.
Step 2
Complete the sentence by putting a cross (✗) in the box next to your answer.
Answer
The correct answer is C: 6000 N m/s. This can be calculated using the equation for momentum, which is given by the formula:
where is momentum, is mass in kilograms, and is velocity in meters per second. Given the mass is 60 kg (since weight is 600 N and weight equals mass times gravitational acceleration) and speed is 10 m/s, we calculate: