Question

Determine the net force (in N) necessary to give an object with a mass of 2.10 kg an acceleration of 5.20 m/s².N

Answer 1

Newton's second law states that the force is equal to the rate of change of momentum; for a constant mass, force equals mass times acceleration. In mathematical terms this means that:

`F=ma`

where m is the mass and a is the acceleration.

In this case the mass is 2.10 kg and the acceleration is 5.20 m/s²; plugging these values in Newton's second law we have that:

`\begin{gathered} F=(2.10)(5.20) \\ F=10.92 \end{gathered}`

Therefore, the force needed is 10.92 N