Free fall and slide, gained speed?

[jaguar___]

Homework Statement

which one would be faster when reached the ground?

Homework Equations

The Attempt at a Solution

conservation of energy
Pe=Ke
mgh=1/2mV^2
for 2-)m*g*cosa*(h/cosa)=1/2*m*V^2 -- V= sqrt(2*g*h)
for 1-) V=sqrt(2*g*h)
so V1=V2

 

[tnich]

Homework Statement

which one would be faster when reached the ground?

Homework Equations

The Attempt at a Solution

conservation of energy
Pe=Ke
mgh=1/2mV^2
for 2-)m*g*cosa*(h/cosa)=1/2*m*V^2 -- V= sqrt(2*g*h)
for 1-) V=sqrt(2*g*h)
so V1=V2

I think that would be true in the absence of friction.

 

[jaguar___]

can we say if the inclined plane is ice and also the weights are ice there wouldn't be friction? or so small that can be ignored?

 

[tnich]

can we say if the inclined plane is ice and also the weights are ice there wouldn't be friction? or so small that can be ignored?

You can say anything you want. Does it make sense in the context of the situation?