When a man used 20 N of force to lift a lawn tool, the tool accelerated 2 m/s². What was the mass of the lawn tool?
To find the mass of the lawn tool, we can use Newton's second law of motion, which states:
F = m * a
where:
F = force applied (20 N)
m = mass of the lawn tool (unknown)
a = acceleration of the lawn tool (2 m/s²)
We can rearrange the equation to solve for mass:
m = F / a
m = 20 N / 2 m/s²
m = 10 kg
Therefore, the mass of the lawn tool is 10 kg.