A 2-Kg Block Sits on an Incline Where the Top $\mu$

question 10

Multiple Choice

A 2-kg block sits on an incline where the top part of the incline has a coefficient of kinetic friction ( $\mu$ _k) of 0.70. The bottom section of the plane has $\mu$ _k = 0.95. The angle of inclination is 40 degrees. The block is released and travels 10 m along the initial part of the incline and then enters the lower section. Calculate how far the block travels along the second section before it is brought to a stop.

• A) 2.7 m
• B) 21 m
• C) 23 m
• D) 13 m
• E) 260 m

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