- #1
HaoPhysics
- 26
- 0
Homework Statement
Homework Equations
The block has potential energy U at the top of the ramp, and this is transferred to kinetic energy K at the bottom, which is then trasnfered to work done by friction, Wfr.
U = K Conservation of energy
K = Wfr Conservation of energy
g = 10 m/s2
The Attempt at a Solution
U = mgh = 3*45*10 = 1350 J
1350 J = Wfr = Ffr * d = m*g*u*d = 3*10*1*d
1350 = 30*d
d = 45 m
This does not match the answers. Am I doing anything wrong?