🛒 Newton's Second Law (F = ma)

Newton's Second Law Simulator: F = ma, Force, Mass & Acceleration

This Newton's second law simulator makes F = m·a tangible. Apply a force to a cart, set its mass, and add friction; whatever force is left after friction is the net force, and it accelerates the cart at a = F_net / m. A velocity–time graph draws live as the cart speeds up, and its straight-line slope is exactly the acceleration — constant force gives constant acceleration. Push below the friction threshold and the cart stays put with zero acceleration; push above it and it takes off. The lab makes the proportionalities obvious: double the applied force and the acceleration doubles; double the mass and it halves. Force and friction arrows sit on the cart, a card breaks down applied force, friction, net force, and acceleration, and a predict game asks how a doubles or halves before you test it.

What you can do in this simulation

• Apply force to a cart against friction and watch it accelerate at a = F_net / m
• A live velocity–time graph shows the straight line whose slope equals the acceleration
• Force and friction arrows and a card break down applied force, friction, net force, and a
• See the threshold: below μmg the cart won't move; above it, it accelerates
• Predict mode: call how acceleration changes when force or mass doubles; light/heavy presets

Concepts covered

newton's second law · F = ma · net force · acceleration · friction · velocity-time graph · mass and inertia

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