A-LevelPhysicsDynamics9702/12 · May/June 2011 · Q111 Mark

The momentum of an object changes from 160 kg m s⁻¹ to 240 kg m s⁻¹ in 2 s. What is the mean resultant force on the object during the change?

A40 N

B80 N

C200 N

D400 N

✓ Correct answer

A: 40 N

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