Chapter 7, Problem 1CQ

The batter in a baseball game hits a home run. As he circles the bases, is his angular velocity positive or negative?

To determine

Whether angular velocity is positive or negative.

Answer to Problem 1CQ

The angular velocity of the player is positive.

Explanation of Solution

This solution works under the fact that, ‘rotation in counter clockwise direction is positive, but rotation in clockwise direction is negative.’

When the player takes a home run, he starts running in the clockwise direction around the field. Hence, the angular velocity that player holds is positive.

Conclusion:

Hence, the angular velocity of the player is positive.