A-LevelPhysicsDynamics9702/12 · May/June 2011 · Q101 Mark

A force F is applied to a freely moving object. At one instant of time, the object has velocity v and acceleration a. Which quantities must be in the same direction?

Aand v only

Band F only

Cv and F only

Dv, F and a

✓ Correct answer

B: and F only

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