The following diagram represents a cart with an initial velocity of 1.0 m/s sliding along a frictionless track from point A: At which two points will the kinetic energy of the block be the same?

-A and B
-A and C
-B and D
-B and C

I believe it will it is B and D. Because they have the same shape and on both the cart wil be speeding up.

I HOPE THIS HELPS! HAVE A GREAT DAY! :)

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

gets less