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A ball is attached to a flexible cord and swung in a horizontal circle. The angle between the cord and the horizontal is less than 45°.
(i) Which is larger, the horizontal force or vertical component of the tension force?
(ii) Which is larger, the vertical component of the tension force or the gravitational force?
(iii) Is the acceleration of the ball larger than, smaller than or the same as the acceleration of a ball falling freely in a gravitational field?

Please explain each. Thanks.

2007-11-10 11:10:19 · 1 answers · asked by zircon 2 in Science & Mathematics Physics

1 answers

(i) At an angle of 45° the horizontal and vertical components are equal. At an angle less than 45° to the horizontal, the horizontal component is larger.
(ii)The vertical component IS the gravitational force.
(iii) The acceleration of the ball comes from the centripetal force, or the horizontal component of the tension, so it is larger than g.

2007-11-10 11:58:58 · answer #1 · answered by Helmut 7 · 0 0

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