Homework Help: physics

Posted by Johnathan on Friday, April 4, 2008 at 7:52pm.

A 0.21 kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the tension is 18 N.
--------------------------------------------------------------------------------

(a) How does the magnitude of the centripetal force acting on the ball relate to each point on the circle? The magnitude is the same at each point on the circle.

The magnitude is not the same at each point on the circle.

There is insufficient information for a definitive answer.

Is the answer the magnitude is not the same at each point on the circle?

physics - drwls, Saturday, April 5, 2008 at 2:27am
No. The magnitiude is the same. Only the direction of the force changes.

Answer this Question

Related Questions

Physics - A 0.20-kg ball on a string is whirled on a vertical circle at a ...
Physics - A ball having a mass of 4 kg is attached to a string 1 m long and is ...
Physics - A ball having a mass of 5 kg is attached to a string 1 m long and is ...
Physics - A ball having a mass of 5 kg is attached to a string 1 m long and is ...
physics - a .20 kg ball on a string is whirled on vertical circle at constant ...
Physics - A 0.20-kg ball on a string is whirled on a vertical circle at a ...
physics - A ball of mass 3.0 kg is tied to the end of a 50-cm length of string. ...
Physics - A 0.20-kg ball on a stick is whirled on a vertical circle at a ...
physics - A ball of mass 1.04 kg at the end of a 0.52 m long string is swung in ...
physics - A 0.21 kg ball on a string is whirled on a vertical circle at a ...

For Further Reading

First Name:
School Subject:
Answer: