Skip to main content

Cambridge International AS & A Level Physics · A2 12 · structured

Centripetal force on a roller-coaster model

Motion in a circle · Original GioPhysics question with a detailed, mark-by-mark answer guide.

Demand
demanding
Marks
5
Topics
2
Answer
Complete
Question5 marks

A roller-coaster model of mass 1.4 kg moves at constant speed 7.1 m/s in a circle of radius 1.95 m. Calculate its centripetal acceleration and resultant force.

Task interpretation

What a complete response should do

Build a visible chain from the information given to the quantity or statement requested.

Split the problem into linked stages and state why each relationship applies.

Response type
structured
Allocation
5 marks
Demand
demanding
Ready to check?Reveal answer and worked solution

Private on this device

How did this one feel?

Use your answer and the marking steps—not confidence alone—to choose.