Try it
Force50N
Understand the result
What's going on
Push on something and it accelerates - how much it accelerates depends on how hard you push and how much there is to move. Newton’s second law is the sentence that pins that relationship down exactly.
The formula
F = m × a
F is force in newtons, m is mass in kilograms, a in m/s².
Show the derivation, mnemonic, and worked example
Build it up
Push twice as hard on the same object and it accelerates twice as fast - force and acceleration scale together directly. But push the same amount on something twice as heavy and it only accelerates half as fast - mass resists acceleration. Combine both observations and force has to equal mass times acceleration.
Worked example
Worked example
m = 10 kg, a = 5 m/s²
F = 10 × 5
F = 50 N
