Physics · Oct / Nov 2018 · Paper 12 · Question 3
5054Balanced and unbalanced forces
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?
- Aengine: speed stays constant / truck: slows down
- Bengine: speeds up / truck: slows down
- Cengine: speed stays constant / truck: stops immediately
- Dengine: speeds up / truck: stops immediately
As printed in the paper
Show the answer
Correct answer: B. engine: speeds up / truck: slows down
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