Assuming that albertine's mass is 60.0 kg , for what value of μk, the coefficient of kinetic friction between the chair and the waxed floor, does she just reach the glass without knocking it over? use g = 9.80 m/s2 for the magnitude of the acceleration due to gravity.

The value of coefficient of kinetic friction is 0.102.

Explanation:

Given that,

Mass of Albertine = 60.0 kg

Suppose Albertine finds herself in a very odd contraption. She sits in a reclining chair, in front of a large, compressed spring. The spring is compressed 5.00 m from its equilibrium position, and a glass sits 19.8 m from her outstretched foot.

If the spring constant is 95.0 N/m.

We need to calculate the value of coefficient of kinetic friction

Using formula of work done

....(I)

The concept belongs to work energy and power

Put the value into the formula

Put the value into the formula

Hence, The value of coefficient of kinetic friction is 0.102.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.