I think that both force (number of newtons) and power (p=ui(?)) implies that there is energy so we can't have force without energy and we can't have power without energy(?)
But can there be energy that is energy and no force and no power?
|show 1 more comment|
Radiation classically carries energy and if the radiation interacts with a body, then power is transmitted , where power is the rate of change of energy. For example there is radiation pressure in vacuum , in this link. Radiation does transfer energy in a newtonian way, where the force can be estimated from dp/dt, the instantaneous change of momentum .
The big bang is not a simple story to be expounded here and used as an example. Have you read the wiki article?
Yes, as said in the comments to your question only interactions need the concept of force and power.
A body when is in equilibrium and is still in a state of motion may have energy but has 0 net force. And Power is work done per unit time and in many cases work is done changing type of energy. If a body is in equilibrium, a body is most possibly in uniform motion, so energy is not getting transformed into anything else, thus there is no change in amount of energy resulting no work done i.e. no power. So , there can be energy but no force and power.