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Problem: The cart’s change of momentum Δpx isA. -20 kg m/sB.-10 kg m/sC. 0 kg m/sD. 10 kg m/sE. 30 kg m/s

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Initial momentum, pi = (10)(-2) = -20 kg•m/s

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Problem Details

The cart’s change of momentum Δpx is

A. -20 kg m/s

B.-10 kg m/s

C. 0 kg m/s

D. 10 kg m/s

E. 30 kg m/s

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