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Figure 11 shows a pulley system that enables a person to lift a heavy barrel - Edexcel - GCSE Physics Combined Science - Question 6 - 2023 - Paper 2
Question 6
Figure 11 shows a pulley system that enables a person to lift a heavy barrel. The person pulls down on the rope to make the barrel rise through 1.2 m. The work don... show full transcript
Worked Solution & Example Answer:Figure 11 shows a pulley system that enables a person to lift a heavy barrel - Edexcel - GCSE Physics Combined Science - Question 6 - 2023 - Paper 2
Step 1
Calculate the weight of the barrel
Answer
To find the weight of the barrel, we can rearrange the equation for work done:
Rearranging gives us:
ext{force} = rac{ ext{work done}}{ ext{distance moved}}Substituting in the values from the question, we get:
ext{force} = rac{1800 ext{ J}}{1.2 ext{ m}} = 1500 ext{ N}Thus, the weight of the barrel is 1500 N.