klsgenius02
contestada

A force of 157 N is applied to a box 25o above the horizontal. If it is applied over a distance of 14.5 m how much work is done?

Please show work

Respuesta :

joseaaronlara

Answer:

The answer to your question is:     W = 2063.4 J

Explanation:

Data

Force = 157 N

angle = 25°

distance = 14.5 m

W = ?

Process

- Find the horizontal force

                                            cos Ф = adjacent side / hypotenuse

                                           adjacent side = hypotenuse x cosФ

                                           a.s. = 157 x cos 25

                                           a. s. = 142.3 N

- Find the work

                                           W = F x d

                                           W = 142.3 x 14.5

                                           W = 2063.4 J

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