Question

1. a crane does 62,500 j of work to lift a boulder 25.0 m. how much did the boulder weigh?

2500 n
5000 n
1000 n
6250 n

Explanation:

Step1: Recall the work formula

Work \(W = F\times d\), where \(W\) is work, \(F\) is force (here the weight of the boulder), and \(d\) is the distance. We need to find \(F\), so we can rewrite the formula as \(F=\frac{W}{d}\).

Step2: Substitute the given values

Given \(W = 62500\space J\) and \(d=25.0\space m\). Then \(F=\frac{62500}{25}\).

Step3: Calculate the value

\(\frac{62500}{25}=2500\space N\)

Answer:

2500 N