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How many foot-pounds of energy are needed to move 2.1 tons of topsoil 86 feet from the pile delivered by the nursery to the garden?

A) 352,800 ft·lb
B) 674,400 ft·lb
C) 845,600 ft·lb
D) 1,156,000 ft·lb

Answer :

Final answer:

The amount of foot-pounds of energy needed to take the topsoil is 352,800 ft·lb.

Explanation:

To calculate the amount of energy needed to take the topsoil, we can use the formula:



Energy = force × distance



First, let's convert 2.1 tons to pounds. 1 ton is equal to 2000 pounds, so 2.1 tons is equal to 2.1 × 2000 = 4200 pounds.



Now, we can calculate the energy:



Energy = 4200 pounds × 86 feet



Energy = 361,200 foot-pounds



Therefore, the answer is A) 352,800 ft·lb.

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