OCR GCSE Physics A · J249
Specification P8.1h · Paper 2 (Foundation), Paper 4 (Higher)
Revise: Force estimationThe braking force needed depends on the car's mass, speed and how quickly it comes to rest.
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GCSE Physics · key term
A force opposing a vehicle's motion while its brakes slow it down.
Used by OCR
Specification P8.1h · Paper 2 (Foundation), Paper 4 (Higher)
Revise: Force estimationThe braking force needed depends on the car's mass, speed and how quickly it comes to rest.
State that a force calculated from a braking distance is an average estimate; the actual braking force may vary.
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