Newton's Second Law Calculator

Relate force, mass and acceleration with F = ma.

Force (N) 15

Formula: F = m × a

Step-by-step with your numbers:

1. Values used:

2. Mass = 5

3. Acceleration = 3 m/s²

5. Force = Mass x Acceleration = 5 x 3 = 15N

Did we solve your problem today?

Newton's second law: the net force equals mass times acceleration.

The math behind it

F = m·a. Rearranged, a = F/m and m = F/a.

5 kg accelerating at 3 m/s² needs 15 N.

What is the net force?

The vector sum of all forces acting on the object.