Question

The amount of work done (w) is the product of the rate of work (r) and the time spent working (t). What is the value of r if w = WWt?

1) r = WWt
2) r = W/Wt
3) r = Wt/W
4) r = Wt/WW

Answer 1

The correct value of r, the rate of work, given the equation w = rt, is r = W/t, corresponding to option 2: r = W/Wt.

Step-by-step explanation:

The student is asking about the rate of work (r), which is related to the amount of work done (w) and the time spent working (t). According to the formula for power (P), the rate at which work is done is calculated by dividing the work done (W) by the time (t). The equation for power is P = W/t, which can also be interpreted as the rate of work (r) done over a period of time.

Given the equation w = WWt, which seems to be a typo, the accurate formula should likely be w = rt. To solve for the rate of work (r), we can rearrange this equation to r = W/t. Therefore, among the given options, the correct one is option 2: r = W/Wt.