To Determine the Height of a Flagpole,Abby Throws a Ball

question 24

Multiple Choice

To determine the height of a flagpole,Abby throws a ball straight up and times it.She sees that the ball goes by the top of the pole after 0.50 s and then reaches the top of the pole again after a total elapsed time of 4.1 s.How high is the pole above the point where the ball was launched? (You can ignore air resistance.)

• A) 10 m
• B) 13 m
• C) 16 m
• D) 18 m
• E) 26 m

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Definitions:

True

In programming and digital logic, a condition or value representing truth, often equated to 1 or high state.

Closed-loop Control

A control system methodology where output is measured and continuously fed back into the system for real-time adjustments to achieve desired performance.

PLC Control

PLC (Programmable Logic Controller) control refers to the automation of machinery and processes using a specialized computer that executes instructions for logical operations, sequencing, timing, counting, and arithmetic to control machines and processes.

Desired Value

The target or setpoint value that a system or process aims to achieve or maintain.