Final answer:
The work done by a warehouseman in pushing a refrigerator is calculated using the formula Work = Force × Distance, with force measured in Newtons and distance in meters. First, convert pounds to kilograms and feet to meters for proper calculations in physics.
Step-by-step explanation:
The question about how much work a warehouseman does pushing a refrigerator is related to the concept of work done in physics. Work is defined as the product of the force applied to an object and the distance over which that force is applied, when the force and distance are parallel to each other. Since we know the applied force is horizontal and the displacement is also horizontal, we can use the formula Work = Force × Distance to calculate the work done.
However, in order to calculate the work, we need the force in Newtons (N) and the distance in meters (m). First, we need to convert the weight of the refrigerator from pounds to kilograms, and then calculate the force in Newtons using the acceleration due to gravity (9.81 m/s2). Afterwards, we convert the distance from feet to meters. Given that 1 pound is approximately 0.453592 kilograms and 1 foot is approximately 0.3048 meters, we can proceed with these conversions.