What bag? More information is needed.
carrying a bag not doing work cause without force.
Yes, because you can bag something if you work in a store.
Yes. Physicists have confused negative work and positive work. The 'en' in energy is 'input' or energy is 'work/ergs in'. When you set a heavy bag down you are letting work out. Lifting a bag against gravity is putting work in, dropping a bag with gravity is getting work out.This is an error that started around 1900 when Physicists like Maxwell defined Energy as displacing an object in the direction of the force. This definition is an error, displacing an object against the force requires putting ergs in, energy. Displacing an object in the direction of the force is exergy, work out, like dropping a rock is work out, lifting a rock is work in.
The work done by the boy in carrying the bag is equal to the force applied (weight of the bag, which is 2kg in this case) multiplied by the distance traveled. The work done would be measured in joules.
'because when you pick up a bag of groceries,you have kinetic energy,which means you are moving, but when you carry it,the bag usually stays in the same place,so it has potential energy,which means its not moving.
A suitcase
In your ball bag
In a bag
Negative
Iv never heard that that will work. Plastic bag does not sound good for ripening fruit. Advocado will ripen in a Paper bag.
an air compressor and a regulater '
Yes