Solve the Problem
-A Force of 5 Pounds Acts in the Direction

question 231

Multiple Choice

Solve the problem
-A force of 5 pounds acts in the direction of $9 ^ { \circ }$ to the horizontal. The force moves an object along a straight line from the point $( 9,3 )$ to the point $( 18,13 )$ , with distance measured in feet. Find the work done by the force. Round the answer to one decimal place, if necessary.

• A) \(66.4 \mathrm { ft } - \mathrm { lb }\)
• B) \(67.3 \mathrm { ft } - \mathrm { lb }\)
• C) \(13.3 \mathrm { ft } - \mathrm { lb }\)
• D) \(93.8 \mathrm { ft } - \mathrm { lb }\)

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Definitions:

Hand-off-automatic Circuit

A control circuit configuration that allows a device or system to be operated manually or automatically, based on the position of a selector switch.

Pilot Control Device

A mechanism or component used to regulate the operation of machinery or systems through the control of smaller power inputs.

Loss of Power

A situation where electrical power is interrupted or unavailable to a device or area.

Two-wire Motor

A motor designed to be operated with two electrical connections, typically for power and ground.