Question

1. how much does a 40 - kg student weigh on earth in newtons?

Explanation:

Step1: Recall the formula for weight

Weight \(W = mg\), where \(m\) is mass and \(g\) is acceleration due to gravity (\(g = 9.8\space m/s^{2}\) on Earth).

Step2: Substitute the given values

Given \(m = 40\space kg\) and \(g=9.8\space m/s^{2}\), then \(W=(40\space kg)\times(9.8\space m/s^{2})\).

Step3: Calculate the weight

\(W = 40\times9.8=392\space N\)

Answer:

\(392\space N\)