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Answer: 1. varying velocity and varying acceleration.

Key idea: Velocity and acceleration are vectors, so a change in direction counts as a change.

In uniform circular motion the speed is constant, but the velocity direction keeps changing, so velocity varies. The centripetal acceleration \(\frac{v^2}{r}\) has constant size but always points to the centre, so its direction changes and it also varies.

Hence option 1. The other options claim something stays constant.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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