Cylinder and a hoop have the same mass and radius. They are released at the same time and roll down a ramp without slipping.

1)Which one reaches the bottom first?
Cylinder
Hoop
Both reach the bottom at the same time

Explanation:

acceleration of a body rolling down an inclined surface with inclination θ

a = gsinθ / (1 + k² / r²)

Here k is radius of gyration of the body rolling down and r is the radius of it.

For hoop

k = r

a  = gsinθ / (1 + r² / r²)

= g / 2 x sinθ

0.5 gsinθ

For cylinder

k² =  r² /2

a  = gsinθ / (1 + r² /2 r²)

= 2 / 3 g sinθ

= .67 g sinθ

So acceleration is more for cylinder

Hence cylinder  will reach the bottom first.

chemical properties of thing

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!