Question

A mailman performed 588J of work lifting a box 1.4 m. How much force did the mailman use?

Answer 1

Answer: 420 N

Step-by-step explanation:

A PE X

Answer 2

As we know that work done due a force F is given by formula

`W = F.d`

here F = applied force due to which work is done

d = displacement of object

now here we will have

W = 588 J

d = 1.4 m

now we can find force by above formula

`588 = F* 1.4`

`F =(588)/(1.4)`

`F = 420 N`

So applied force by milkman is F = 420 N