Potential & Kinetic Energy help?
Ok i forgot this stuff and wasnt assigned a book home
here are my 2 questions:
1. can an object have potential energy ad kinetic energy at the same time?
2.how can the kinetic energy of an a truck increase without increasing the trucks speed.
10 points for best answer :p
ty in advance
Update:wow
2. three situations where the gravititational potential energy of an object changes
Answers & Comments
Verified answer
1. Yes. If I am doing a loop on a rollar coaster, I potential (since I've above the ground) and kinetic (since i'm moving).
2. Increase the mass of the truck.
the main substantial difference between ability and kinetic potential is that ability potential is stored interior a device. because of the fact the regulation of conservation of potential states that potential won't be able to disappear, in basic terms replace varieties, ability potential is a few distance wherein inactive potential is stored. Kinetic potential is potential that does "artwork" via actual action. Kinetic potential relies upon on the linked fee at which an merchandise it shifting, and that's consequently relative between products. as an occasion, a stretched out rubber band has ability potential, on condition that's storing potential which would be converted into kinetic potential via freeing it.
1. Yes it can. For example if you throw a stone up it will have both while it's travelling up and then down.
2. Since the kinetic energy is E=1/2mv^2 a way to increase this without increasing its velocity is by increasing its mass, m.
1. Yes it can
2. Since kinetic energy = 1/2(Mass)(Speed)^2.. so if you keep speed the same, you must increase the mass... the answer to your question is to increase the truck's mass!