Given,
Effort force = 120 N
Load force= 1050 N
Mechanical advantage of a pulley is given by the ratio of load force to the effort force.
Therefore, the mechanical advantage of the given pulley is 8.75.
The minimum coefficient of friction between the track and the mouse's feet that would allow a turn at this speed without sleeping is 1.97.
<h3>Minimum coefficient of friction </h3>
The minimum coefficient of friction is calculated as follows;
F = μmg = mac
μmg = mac
where;
- ac is centripetal acceleration
μg = ac
μg = v²/r
μ = v²/rg
where;
- μ is the minimum coefficient of friction
- v is velocity
- r is radius of the path
- g is acceleration due to gravity
μ = (1.39²)/(0.1 x 9.8)
μ = 1.97
Thus, the minimum coefficient of friction between the track and the mouse's feet that would allow a turn at this speed without sleeping is 1.97.
Learn more about minimum coefficient of friction here: brainly.com/question/23971360
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