Calculate force, mass, or acceleration using Newton's Second Law (F = ma)
Force
98 N
Formula
F = m × a = 10 kg × 9.8 m/s² = 98.0000 N
Conversions
0.0980
kN
22.0313
lbf
9800000.0000
dyn
Force is a push or pull that can change an object's motion. In physics, force is measured in Newtons (N) and is defined by Newton's Second Law of Motion, which states that force equals mass times acceleration.
Newton's Second Law is expressed as:
F = m × aWhere:
Find Force
F = m × a
Find Mass
m = F ÷ a
Find Acceleration
a = F ÷ m
| Scenario | Force (N) |
|---|---|
| Weight of an apple (0.1 kg) | ~1 N |
| Weight of a human (70 kg) | ~686 N |
| Force to lift a car | ~15,000 N |
| Rocket engine thrust | ~35,000,000 N |