A Mass M Is Released from a Height 60 Cm $\mu$

question 10

Multiple Choice

A mass m is released from a height 60 cm from the right-hand side of the track shown in the diagram at right.There is only friction acting on the mass on the horizontal portion 35 cm either side of the midpoint O,with a kinetic coefficient of friction of $\mu$ _k = 0.5.Determine what is the velocity of the block the first time it passes through the midpoint,and on which side of the midpoint does it stop?

• A)3.4 m/s,R
• B)3.9 m/s,R
• C)3.9 m/s,L
• D)2.9 m/s,L
• E)2.9 m/s,R

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Definitions:

System

A set of interrelated components working together to achieve a common goal or function.

Contingency

An event or condition that is possible but cannot be predicted with certainty.

Motion Study

An examination and analysis of the movements involved in performing a task to improve work efficiency by reducing wasteful motions.

Subsystem

A smaller component of a larger system.