Question

1. a 20kg crate accelerates at 3 m/s². what is the force?

mass = 20 acceleration = 3m/s²
20÷3 = 6.6 force

Explanation:

Step1: Recall Newton's Second Law

Newton's second law states that force \( F \) is equal to mass \( m \) multiplied by acceleration \( a \), i.e., \( F = m \times a \).

Step2: Identify given values

Mass \( m = 20 \, \text{kg} \), acceleration \( a = 3 \, \text{m/s}^2 \).

Step3: Calculate the force

Substitute the values into the formula: \( F = 20 \, \text{kg} \times 3 \, \text{m/s}^2 \).
\( F = 60 \, \text{N} \) (Newtons, the unit of force).

Answer:

The correct force is \( 60 \, \text{N} \). The initial calculation was incorrect as it used division instead of multiplication according to Newton's second law (\( F = ma \)).