A Baby (M=7

question 34

Multiple Choice

A baby (m=7.1 kg) lies in his bed,1.1 m above the ground.The father (m = 81 kg) then lifts him up to 1.9 m above the ground and then places him on the ground.How much total work does the father do in moving his child?

• A)-800 J
• B)-76 J
• C)-56J
• D)+56J

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Definitions:

One Scan

Refers to a single complete cycle or pass of a control system's logic execution, often in the context of PLC programming.

Output Unlatch

A control command or instruction that turns off or disables a previously engaged (latched) output in a PLC program or control system.

OTL

An "Output Latch" instruction in programming that sets an output to a high state until explicitly reset.

Output Empty

Indicates that a system or module has no current output signals or data to send, possibly standing by for new instructions or input.