IB Physics HL A 2 24 Centripetal Force Questions

Practise analysing HL centripetal-force systems, including orbital motion, loops, banked roads and vertical circles.

Exam points

Determine centripetal force as the resultant inward force perpendicular to the instantaneous velocity.
Calculate centripetal force using F = mv²/r or F = mω²r and identify the physical force providing it from complete evidence.

[Maximum number: 1]

Aibhe and Euan are sitting on opposite sides of a merry-go-round, which is rotating at constant speed around a fixed centre. The diagram below shows the view from above.

Figure for Question IB Physics HL A 2 24 Centripetal Force Questions question 1 — IB Physics HL

Aibhe is moving at speed $1.0 \mathrm{~m} \mathrm{~s}^{-1}$ relative to the ground.

Identify the force that is causing Aibhe to move in a circle.

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IB Physics HL A 2 24 Centripetal Force Questions question 1