M1 If a rigid body is in translation only the velocity at po

M1 If a rigid body is in translation only, the velocity at points A and B on the rigid body_____ depend on their position relative to one another are usually different depend on their absolute position have the same direction and magnitude

Solution

D) have the same direction and magnitude.

The linear velocity of a rigid body is a vectorquantity, equal to the time rate of change of its linear position.Thus, it is the velocity of a reference point fixed to the body. During purely translational motion, all points on a rigid body move with the same velocity. Translation occurs if every line segment on the body remains parallel to its original direction during the motion. Hence the velocity at points A and B on the rigid body in translation have the same direction and magnitude.