O-LevelPhysicsForces5054/12 · Oct/Nov 2018 · Q31 Mark
An engine pulls a truck at constant speed on a level track. The link between the engine and the truck breaks. The driving force on the engine remains constant. What effect does this have on the engine and on the truck?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Aspeed stays constant, slows down
Bspeeds up, slows down
Cspeed stays constant, stops immediately
Dspeeds up, stops immediately
✓ Correct answer
B: speeds up, slows down
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