Does a Roller as support for Rigid Body provide both Normal Force & Moment or Just Normal Force? Why?

1 ⤊

Does a Roller as support for Rigid Body provide both Normal Force & Moment or Just Normal Force? Why?

My Book says Only Force, but I can't see why it can't provide support for Moment as well...

2007-02-05 19:56:47 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics

3 answers

A roller does not provide moment because it is not anchored, if it was it would be a hinge.

2007-02-05 20:02:14 · answer #1 · answered by themountainviewguy 4 · 1⤊ 1⤋

tell me is roller in motion or rest

in both cases ans is

it will just provide normal force

cuz momentum is in direction of velocity vector which is parllel to body

2007-02-05 20:09:51 · answer #2 · answered by n nitant 3 · 0⤊ 1⤋

moment of its force would be zero as it passes through center of mass hence we can say that it does not provide moment

2007-02-05 20:12:36 · answer #3 · answered by Anonymous · 0⤊ 1⤋