__Date__
: October 25,
2005

__Aim__
: To determine the
coefficients of static friction and kinetic

friction

__Name
__
: Marja A. Copeland

__Lab
partner__ : Sarah
Tibby

__FRICTION, TENSION,
PULLEYS MASS__

__ __

Experimentation, repetition, failure, success,

Hanging masses after masses we tried our best.

Coefficients big, coefficients small,

Doing trial after trial, we did it all.

Mass one, mass two were names we gave,

To these strange objects we had to manipulate.

Two hundred grams, four hundred grams, five-fifty, and then six,

To get the coefficients we tried all the tricks.

Friction, tension, pulleys, mass,

Normal force equals mass times acceleration, imagine that.

Acceleration due to gravity is nine point eight

The coefficient of static friction we need to calculate.

Dividing six-eight-six by five-eight-eighty gave __point one__

That’s the coefficient of static friction but we’re not done

One answer down, one answer still to get,

We keep adding masses; we’re not there as yet.

The object moves, then it stays in place,

If it keeps moving we’ve won this race.

Four-ninety divided by six-eight-sixty giving __zero point zero
seven__

Finally! The coefficient of kinetic energy, after what, trial eleven?

After struggling with friction, tension, pulleys, mass

Normal force still equals mass times acceleration, imagine that.

Marja A. Copeland