- #1
Cali10
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(An explanation)
My physics teacher recently passed away, and had been absent due to his illness.
We had last started on acceleration, but the substitute had been working us on Kinetic, Potential energy, and Momentum.
We're having a test, and like myself, none of my classmates are ready, we've discussed this with the substitute, and the other physics teacher, whom I've already tried getting help from, is making us have this test Friday.
I literally have NO idea what I'm doing, I've looked up formulas, but I still don't understand what the heck I'm doing!
If any of you would be so great to help me, or explain how to do it, I would be so thankful!
- Cali
A girl with a mass of 40 kg on a bicycle with a mass of 19 kg is at the top of a hill that is 22 m high. What is the kinetic energy of the girl and the bicycle as she arrives at the bottom of the hill?
How fast will the girl and the bicycle be going at the bottom of the hill?
So I know the equation for Kinetic energy is KE = 1/2*M*V2
But I don't understand how to find it if its at the bottom of the hill?
And for the second part, I don't understand how to do it at all.
I've tried, but I don't know exactly how to start it off, or anything.
My physics teacher recently passed away, and had been absent due to his illness.
We had last started on acceleration, but the substitute had been working us on Kinetic, Potential energy, and Momentum.
We're having a test, and like myself, none of my classmates are ready, we've discussed this with the substitute, and the other physics teacher, whom I've already tried getting help from, is making us have this test Friday.
I literally have NO idea what I'm doing, I've looked up formulas, but I still don't understand what the heck I'm doing!
If any of you would be so great to help me, or explain how to do it, I would be so thankful!
- Cali
Homework Statement
A girl with a mass of 40 kg on a bicycle with a mass of 19 kg is at the top of a hill that is 22 m high. What is the kinetic energy of the girl and the bicycle as she arrives at the bottom of the hill?
How fast will the girl and the bicycle be going at the bottom of the hill?
Homework Equations
So I know the equation for Kinetic energy is KE = 1/2*M*V2
But I don't understand how to find it if its at the bottom of the hill?
And for the second part, I don't understand how to do it at all.
The Attempt at a Solution
I've tried, but I don't know exactly how to start it off, or anything.