An air puck of mass 0.129 kg is tied to a string
and allowed to revolve in a circle of radius
0.96 m on a horizontal, frictionless table. The
other end of the string passes through a hole
in the center of the table and a mass of 1 kg
is tied to it. The suspended mass remains in
equilibrium while the puck revolves.
What is the tension in the string? The
acceleration due to gravity is 9.8 m/s
2
.

Question

An air puck of mass 0.129 kg is tied to a string
and allowed to revolve in a circle of radius
0.96 m on a horizontal, frictionless table. The
other end of the string passes through a hole
in the center of the table and a mass of 1 kg
is tied to it. The suspended mass remains in
equilibrium while the puck revolves.
What is the tension in the string? The
acceleration due to gravity is 9.8 m/s
2
.

noelgreco · Answer

Have you drawn a diagram?  What formulas might be involved?

anonymous · Answer

i have a diagram but i dont know the formulas

noelgreco · Answer

Well, you have to have been studying centripetal force, you must know how to calculate gravitational force.  Otherwise you would not have been asked this question.

anonymous · Answer

we started learning but i lost all my notes so i dont know how to do it with out the formulas