Question

select the equation that shows that 36 j of work is done when a force of 20 n moves a book 1.8 m (1 n·m = 1 j)
w = f/d
w = f/d²
w = fd
w = f²d

Explanation:

Step1: Recall work - force - distance formula

The work done $W$ by a force $F$ over a distance $d$ is given by the formula $W = Fd$.

Step2: Check with given values

Given $F = 20N$, $d=1.8m$, then $W=Fd=20\times1.8 = 36J$ (since $1N\cdot m = 1J$).

Answer:

C. $W = Fd$