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Weight lifting



In the last few week of physics we have been talking about work and energy and when it is applied. Work is the process of moving an object by applying a force, so if we are pushing someone and they end up falling in that direction then you are applying work to them. When I think of work and applying a force I think of a weight lifter and how much force they have to apply to the weights to be able to life them. If a weight lifter is lifting a 100 kg weight and their displacement is 2 meters the work being done is 1962 Joules. For a force to have done work on an object it must have caused a displacement, the weights had originally been on the ground and were raised two meters. Weight lifters use a lot of work and energy to be able to lift their weights.


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