O-LevelPhysicsForces5054/11 · Oct/Nov 2015 · Q51 Mark
In which example does friction act in the direction of forward motion of the object on which it acts?
Aon a suitcase accelerating on a conveyor belt
Bon sandpaper rubbing a wooden block
Con the skis of a skier accelerating downhill on smooth snow
Don the tyres of a braking car
✓ Correct answer
A: on a suitcase accelerating on a conveyor belt
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