Edexcel Gcse Physics/additional Science - Unit 2: Physics For Your Future Higher Tier Page 7
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(ii) The weight he lifts has a mass of 240 kg.
Gravitational Field Strength = 10 N/Kg
The energy gained by the mass is equal to the
work done when lifting it.
Calculate the height he lifts this mass.
(3 marks)
height = _______________ m
(b) After lifting the mass, he must hold it steady for
3 seconds.
During this time, he does no work on the mass.
State why he does no work on the mass in this
time. (1 mark)
_________________________________________________________
_________________________________________________________
_________________________________________________________
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