Question

How much work is done when a 48-kg stack of books are lifted 2m with a net force of 25 N ?

Answer 1

Answer:

C). W = 50 J

Explanation:

As we know that the work done is the product of force and displacement

so here it is given that the net force on the stack of books is 25 N

$F = 25 N$

also the displacement of the stack of books is 2m as it is lifted upwards

so we have

$d = 2 m$

now by the formula of work done we know

$W = F.d$

now plug in all values in it

$W = (25)(2)$

$W = 50 J$

Answer 2

Work = force x displacement
W = 25 x 2
W= 50 J