The lever arm ( or perpendicular lever arm) in the context of rotational motion (1) can be thought as perpendicular component of r (2) is shortest line drawn from axis of rotation to line of action of force (3) is same as r a) Only (2) is correct b) Only (1) is correct c)All (1), (2), and (3) are correct d)Both (1) and (2) are correct

The lever arm ( or perpendicular lever arm) in the context of rotational motion (1) can be thought as perpendicular component of r (2) is shortest line drawn from axis of rotation to line of action of force (3) is same as r a) Only (2) is correct b) Only (1) is correct c)All (1), (2), and (3) are correct d)Both (1) and (2) are correct