#1 1. A 0.35 kg ball is being whirled around at constant speed in a conical pendulum at the end of a 1.0 m string. Explain why the tension in the string does zero work on the ball.**Diagram Explanation:**The diagram illustrates a conical pendulum setup. A ball is attached to a string, creating an angle as it moves in a horizontal circular path. The string is connected to a fixed point above, forming a conical shape as the ball moves. The path of the ball is a circle, depicted by a purple dotted line, indicating the motion in a horizontal plane. The force of tension acts along the string, towards the pivot point, illustrating the direction of the force applied. The center of this circle aligns with the vertical line representing the gravitational force acting downward. **Concept Explanation:**The tension in the string does zero work on the ball because work is defined as the force applied in the direction of the displacement. Here, the tension force is always perpendicular to the velocity of the ball since it moves in a circular path. Because these forces are perpendicular, no work is done by the tension on the moving ball.

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Answered: A 0.35 kg ball is being whirled around…

A 0.35 kg ball is being whirled around at constant speed in a conical pendulum at the end 1. of a 1.0 m string. Explain why the tension in the string does zero work on the ball.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest. 

Question

1. A 0.35 kg ball is being whirled around at constant speed in a conical pendulum at the end of a 1.0 m string. Explain why the tension in the string does zero work on the ball.

**Diagram Explanation:**
The diagram illustrates a conical pendulum setup. A ball is attached to a string, creating an angle as it moves in a horizontal circular path. The string is connected to a fixed point above, forming a conical shape as the ball moves. The path of the ball is a circle, depicted by a purple dotted line, indicating the motion in a horizontal plane. The force of tension acts along the string, towards the pivot point, illustrating the direction of the force applied. The center of this circle aligns with the vertical line representing the gravitational force acting downward.

**Concept Explanation:**
The tension in the string does zero work on the ball because work is defined as the force applied in the direction of the displacement. Here, the tension force is always perpendicular to the velocity of the ball since it moves in a circular path. Because these forces are perpendicular, no work is done by the tension on the moving ball.

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