- Homework Statement:
- Pre University qualification top up course
- Relevant Equations:
- See below
Please help, I'm really struggling to understand how to work this...
work = mass * gravity * change in height
w = m*g*(h2 - h1)
Total energy = Sum of potential energy + Kinetic Energy
work = 1/2Kinetic Energy * Potential energy ^2
w = (1/2 * K) * U^2
rearanged = (2(m*g*(h2-h1))/U^2)=K
We are given
U, m, g, h2 and h1
Firstly, is my above working along the right line.
Secondly, how to I show this as 80%?