A Mass M Is Released from a Height 75 Cm $\mu$

question 37

Multiple Choice

A mass m is released from a height 75 cm from the right-hand side of the track shown in the diagram at right.There is only friction acting on mass along the horizontal portion 30 cm either side of the midpoint O,with a kinetic coefficient of friction of $\mu$ _k = 0.4.Determine how high it reaches the second time it passes over to the left side,and in which direction is it moving when it stops?

• A)27 cm,R
• B)3.0 cm,R
• C)27 cm,L
• D)3.0 cm,L
• E)51 cm,R

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