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Nataly_w [17]
3 years ago
15

Which statement is true? A Displacement can never be greater than distance. B Displacement can never be less than distance. C Di

splacement can never be equal to distance. D Displacement is always equal to distance.
Physics
1 answer:
qwelly [4]3 years ago
3 0

Answer:

__________________

I think the answer is A.

__________________

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A 6 kg box with initial speed 5 m/s slides across the floor and comes to a stop after 1.9 s. What is the coefficient of kinetic
Ilia_Sergeevich [38]

Answer:

\mu_k=0.27

Explanation:

According to the free body diagram, in this case, we have:

\sum F_x:-F_k=ma\\\sum F_y:N=mg

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F_k=\mu_k N

Replacing and solving for the coefficient of kinetic friction:

-\mu_kN=ma\\-\mu_k(mg)=ma\\\mu_k=-\frac{a}{g}

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