Question

which of the following is the force needed to make a 1 - kg object accelerate at 1 m/s²?a. 1 poundb. 1 ouncec. 1 kilogramd. 1 newton

Explanation:

Step1: Use Newton's second law

Newton's second law is \(F = ma\), where \(m\) is mass and \(a\) is acceleration.
Given \(m = 1\space kg\) and \(a=1\space m/s^{2}\).
Substitute values into the formula: \(F=(1\space kg)\times(1\space m/s^{2})\).

Step2: Calculate the force

\(F = 1\space kg\cdot m/s^{2}\).
By definition, \(1\space kg\cdot m/s^{2}=1\space N\) (newton).

Answer:

d. 1 newton