Understand and use the expressions dv/dt, d²x/dt², v dv/dx and d(½v²)/dx to represent the acceleration of an object moving in a straight line.

u4-t4-s1-d3

Interactive

One acceleration, four writings

demo

Scrub one particle on a line; dv/dt, d²x/dt², v dv/dx and d(½v²)/dx all equal the same live a — the natural writing depends on whether v is given vs t or vs x.

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