A skateboarder is moving at a constant speed of 1.75 m/s when she starts up an incline that causes
her to slow down with a constant acceleration of
-0.20 m/s2. How much time passes from when
she begins to slow down until she begins to
move back down the incline?

Ithink it is c ,i hope i you

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then   

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This question is incomplete and not physics but i'm  willing to if you can give a better question