A ball of mass 2.3 kg, at one end of a string of length L=D4.5 m, rotates in a vertical circle just fast enough to prevent the string from going slack at the top of the circle. Assuming mechanical energy is conserved, the speed of the ball (in m/s) at the bottom of the circle is: m

A ball of mass 2.3 kg, at one end of a string of length L=D4.5 m, rotates in a vertical circle just fast enough to prevent the string from going slack at the top of the circle. Assuming mechanical energy is conserved, the speed of the ball (in m/s) at the bottom of the circle is: m

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)...

See similar textbooks

Similar questions

The string in the figure is L = 121 cm long, has a ball attached to one end, and is fixed at its other end. The distance d from the fixed end to a fixed peg at point Pis 82 cm. When the initially stationary ball is released with the string horizontal as shown, it will swing along the dashed arc. What is its speed when it reaches (a) its lowest point and (b) its highest point after the string catches on the peg? d P (a) Number i Units (b) Number Units
A 100-g object is attached to one end of a massless 10-cm rod. The system is held vertical and is released from rest, allowing it to swing like a pendulum. What is the speed of the object when the rod is perfectly horizontal?
A disk of mass m = 5 kg, Ic =mR3, and outer radius Ro = 0.9 m contacts an inclined surface with friction coefficient H = 0.15 and ramp angle e = 36.8699°. An inextensible, massless string is wrapped around an inner hub of radius R, = 0.6 m. Use a work-energy argument to find the speed of Ro B R, the disk's center after the disk has moved d = 2 meters downhill. A Ans: ve = 2.3537 m/s u = 0.15
As shown in the figure below, a small mass is released from rest at point A along the horizontal diameter on the inside of a frictionless, hemispherical bowl. The mass has a mass m = 265 g and the bowl has a radius R = 30.5 cm. 2R/3 (a) Calculate the gravitational potential energy of the mass-Earth system (in J) when the mass is at point A relative to point B. (b) Calculate the kinetic energy of the mass (in J) at point B. (c) Calculate its speed (in m/s) at point B. m/s (d) Calculate its kinetic energy (in J) when the mass is at point C. (e) Calculate the potential energy (in J) when the mass is at point C.
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.75 m. With the string hanging vertically, the object is given an initial velocity of 1.2 m/s parallel to the ground and swings upward in a circular arc. Eventually, the object comes to a momentary halt at a point where the string makes an angle A with its initial vertical orientation and then swings back downward. Find the angle O.
Please asap
A small block of mass M = 300 kg begins at height h above the ground. It slides down a frictionless surface and encounters a loop of radius R = 5 m, as shown in the figure. What is the minimum initial height of the block so that it does not derail as it goes through the loop? Give you answer to tree significant figures. h 12.5 m
Determine the escape velocity (minimum speed of an object/body) for planet earth. Start from the definition of Gravitational force GM m F = and Work w= S Fdz where G is the universal gravitational constant, Me is the mass of earth, m is the mass of the object/body, and z is the distance between Earth and object/body (the same as the radius of earth).
An object moves in uniform circular motion. What is the reason the centripetal force does no work on the object?
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.80m. With the string hanging vertically, the object is given an initial velocity of 1.9 m/s parallel to the ground and swings upward in a circular arc. Eventually, the object comes to a momentary halt at a point where the string makes an angle with with it's initial vertical orientation and then swings back downward. Find the angle.
A satellite's orbit around Mars is circular. Which of the following best describes the work Mars does on the satellite? Choose 1 answer: The work Mars does on the satellite is equal to the product of the gravitational force and the circumference of the orbit. Mars does no work on the satellite because the gravitational force is perpendicular to the velocity of the satellite as it orbits Mars. The work Mars does on the satellite causes it to accelerate and gain kinetic energy. The work Mars does on the satellite is positive for one half of the orbit and negative for the other half.
A satellite in Earth orbit has a mass of 96 kg and is at an altitude of 1.98 x 10° m. (Assume that U = 0 as r – ∞.) (a) What is the potential energy of the satellite-Earth system? (b) What is the magnitude of the gravitational force exerted by the Earth on the satellite? 97671.15 What is the equation for gravitational force when the altitude is comparable to the radius of the Earth? N (c) What force, if any, does the satellite exert on the Earth? (Enter the magnitude of the force, if there is no force enter 0.)