Me plz!

lester prepares to lift a heavy sack of flour into a customer’s shopping cart. during which part of the action does lester do work?

when he applies force to the sack before lifting it

when he holds the sack against his chest

as he lets go of the sack and it falls onto a cart

as he lifts the sack to his chest from the floor

Option (d) is the correct answer.

Explanation:

Work is defined as the force applied in order to move an object from a certain distance.

Mathematically,         W = F × d

where,       w = work

                  F = force

                  d = distance

Thus, when Lester lifts the sack to his chest from the floor then he is doing work as he is applying force on the sack in order to move it over his chest.

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