Correct answer only !

the following symbol is used to represent in a circuit diagram.

That's the symbol used for a battery.  Actually, it's one cell of a battery, and if there's more than one cell used in the circuit, then the same symbol is repeated in the diagram.

The longer line ... on the left side in this picture ... represents the positive ( + ) side of the cell.  The short, fat line on the right is the negative side.

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

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explanation:

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