An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? A)2.0 m/s², upward B)2.0 m/s², downward C)5.3 m/s², upward D)5.3 m/s², downward E)2.7 m/s², downward

Question

Quizplus · Accepted Answer

The average acceleration is calculated using the formula: (final velocity - initial velocity) / time. Here, (5.0 m/s - 11 m/s) / 3.0 s = -2.0 m/s². The negative sign indicates the acceleration is downward.

An Elevator Is Moving Upward with a Speed of 11