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A 2.3 kg ball is rolling on a flat surface at 2.6 m/s. It encounters a ${10}^{\circ}$ ramp and coasts up the ramp with no energy lost due to friction.

What is the momentum of the ball after it has traveled 1.4 m along the surface of the ramp?

A

1.41 kg · m/s down the ramp.

B

1.41 kg · m/s up the ramp.

C

3.25 kg · m/s down the ramp.

D

3.25 kg · m/s up the ramp.

E

4.6 · kg m/s up the ramp.

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