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Tension in the Trolley String
A student investigated how the acceleration of a trolley varies with the resultant force on the trolley. Figure 10 shows some of the equipment used.
Figure 10 shows the force F which acts through the string. What name is given to force F?
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Marking points
- 1 Names force F as tension.
Full-mark answer
Tension
Why this answer loses marks
Calls the string force friction.
Friction acts between surfaces; the pulling force transmitted along a taut string is tension.