Question

while putting in a new ceiling, jake uses a drill to put screws into the drywall. the screws rotate clockwise as they go into the ceiling. what is the direction of the angular velocity of the screw as the drill drives it into the ceiling?
a. right
b. up
c. down
d. left

Explanation:

Step1: Use the right - hand rule

The right - hand rule for angular velocity: curl the fingers of your right hand in the direction of rotation. The thumb points in the direction of the angular velocity vector.
For a clock - wise rotation (as seen from above the screw going into the ceiling), when we curl the fingers of the right hand in the clock - wise direction, the thumb points down.

Answer:

C. down