That part doesn't make any sense. Is it copied word-for-word? Are you sure it's not 123%? How could it take less work than the change in energy?Sam Vermeulen said:if 23% of the total energy required is used to do the work?
The wording is unclear, but I would it interpret as 23% of the energy the man expends goes into the useful work of ascending the rope.berkeman said:That part doesn't make any sense. Is it copied word-for-word? Are you sure it's not 123%? How could it take less work than the change in energy?
Yeah copied it word for word I'll try what haruspex said. Thank you for the help.berkeman said:That part doesn't make any sense. Is it copied word-for-word? Are you sure it's not 123%? How could it take less work than the change in energy?
How would I go about this without knowing the amount of energy the man expended in the first place?haruspex said:The wording is unclear, but I would it interpret as 23% of the energy the man expends goes into the useful work of ascending the rope.
Just create an unknown for that and see what equation you can write.Sam Vermeulen said:How would I go about this without knowing the amount of energy the man expended in the first place?
Heat is a form of energy that is transferred between objects or systems due to a temperature difference. It is the flow of thermal energy from a warmer object to a cooler object.
In physics, work is defined as the application of a force over a distance. It is measured in joules and is used to describe the transfer of energy from one object to another.
Heat and work are both forms of energy transfer. While heat is the transfer of thermal energy, work is the transfer of mechanical energy. Heat can be converted into work, and work can be converted into heat.
The amount of energy required to climb a rope is directly related to the height and mass of the climber. As the climber lifts their body mass against the force of gravity, work is being done and energy is being expended.
Friction is a force that resists motion between two surfaces. When climbing a rope, friction between the rope and the climber's hands or feet can make the task more difficult and require more energy to overcome. This energy is eventually converted into heat due to the friction between the surfaces.