Question

1. a machine does 2,500 j of work moving an object 100 m in 10 seconds. what is the force needed and the power? 25 n, 250 w 10 n, 200 w 100 n, 500 w 50 n, 400 w

Explanation:

Step1: Calculate the force

Use the formula \(W = F\times d\), where \(W = 2500J\) and \(d = 100m\). Rearranging for \(F\) gives \(F=\frac{W}{d}\).
\(F=\frac{2500}{100}=25N\)

Step2: Calculate the power

Use the formula \(P=\frac{W}{t}\), where \(W = 2500J\) and \(t = 10s\).
\(P=\frac{2500}{10}=250W\)

Answer:

25 N, 250 W