Question

How much Force does it take to move a 100kg object with an acceleration of 2 m/s2?

Answer 1

m=100kg
a=2m/s2
F=?
______
F=m•a
_______________________________

F=100kg•2m/s2
F=200kg•m/s2 —->[ kg•m/s2= N]
F=200N

Answer 2

F = 200 N

General Formulas and Concepts:
Forces

Newton's Law of Motions

• Newton's 1st Law of Motion: An object at rest remains at rest and an object in motion stays in motion
• Newton's 2nd Law of Motion: F = ma (Force is equal to [constant] mass times acceleration)
• Newton's 3rd Law of Motion: For every action, there is an equal and opposite reaction

Step-by-step explanation:

Step 1: Define

Identify given variables.

m = 100 kg

a = 2 m/s²

Step 2: Find Force

1. [Newton's 2nd Law of Motion] Substitute in variables:
   F = (100 kg)(2 m/s²)
2. Simplify:
   F = 200 N

∴ it takes 200 Newtons of force to move a 100 kg object with an acceleration of 2 m/s².

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Topic: AP Physics C - Mechanics

Unit: Forces