The energy required to lift 3500 pounds through 175 feet is 612,500 ft-lb. If you express as energy, what is the energy in ft-lb?

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Multiple Choice

The energy required to lift 3500 pounds through 175 feet is 612,500 ft-lb. If you express as energy, what is the energy in ft-lb?

Explanation:
Work equals force times distance, with the force here being the weight and the distance the object is moved in the direction of that force. Lifting 3500 pounds through 175 feet means you’re doing 3500 pounds of force over 175 feet, so the energy (work) is 3500 × 175. Calculate: 3500 × 175 = 612,500. The unit ft-lb stands for foot-pounds, a unit of energy or work defined as one pound of force acting through one foot of distance. This exact product gives 612,500 ft-lb, which is why that value is the correct energy. The other numbers are rounded or approximate representations, not the precise product.

Work equals force times distance, with the force here being the weight and the distance the object is moved in the direction of that force. Lifting 3500 pounds through 175 feet means you’re doing 3500 pounds of force over 175 feet, so the energy (work) is 3500 × 175.

Calculate: 3500 × 175 = 612,500. The unit ft-lb stands for foot-pounds, a unit of energy or work defined as one pound of force acting through one foot of distance.

This exact product gives 612,500 ft-lb, which is why that value is the correct energy. The other numbers are rounded or approximate representations, not the precise product.

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