Which most simplified form of the law of conservation of energy describes the motion of the block as it slides on the floor from the bottom of the ramp to the moment it stops?
a) 12mv2i+mghi+Wnc=12mv2f+mghf
b) 12mv2i=12mv2f
c) 12mv2i+Wnc=0
d) 12mv2i+mghi=12mv2f+mghf
e) 12mv2i+mghi+12kx2i+Wnc=12mv2f+mghf+12kx2f