Time 0.0 sVelocity 0.0 m/sNet force 0 NPosition 0.0 m

Net Force Lab

Combine forces and observe the resulting motion.

Experiment

Right force8 N

Left force8 N

Mass5 kg

Friction limit0 N

Simulation speed1×

Live measurements

Net force5 N

Acceleration1.0 m/s²

Velocity0.0 m/s

Position0.0 m

Velocity response graph

View & focus

Teacher tools

Complete synchronized lecture

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Introduction

What to watch: The car, vectors, road markers, and graph.

Chapters

Learning objectives

Identify individual forces and their directions.
Add opposing force vectors to determine net force.
Distinguish balanced from unbalanced forces.
Relate net force and mass to acceleration.
Predict how friction changes motion.

Key concepts

Net force is the vector sum of all forces. Balanced forces give zero acceleration; unbalanced forces produce acceleration whose size depends on net force and mass.

Try these experiments

Set both pulls to 8 N and observe zero acceleration.
Keep mass fixed and double the net force.
Keep net force fixed and increase mass.
Raise friction until it balances the applied-force difference.

Questions for exploration

Can a moving object have zero net force?
Why does the heavier cart accelerate less?
When can friction make the net force exactly zero?

Acceleration check

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