Motion in a Straight Line
10 topics · 10 interactive simulations
Position–Time Graph
See how x(t) = x₀ + v₀t + ½at² unfolds — slope = velocity, curvature = acceleration.
Velocity–Time Graph
Linear v(t) from constant acceleration — area under curve = displacement.
Acceleration–Time Graph
Three-phase step function — area under a-t gives Δv.
Uniform Motion
Constant velocity — distance markers, looping track, reversible direction.
Uniform Acceleration
Ball with initial velocity and constant acceleration — live v and a arrows.
Free Fall
Drop a ball from any height — gravity arrow, v arrow, fall time, impact velocity.
Relative Velocity (1D)
Switch reference frames — ground, A, B — and see velocities transform.
Meeting Point Problems
Two objects with different initial positions and velocities — find when and where they meet.
Graph Interpretation Lab
Identify motion type from x-t / v-t / a-t graphs — 6 canonical scenarios.
Variable Acceleration
Numerically integrate a(t) — see v(t) emerge as the integral under a(t).