3. A pendulum consists of a 2.0 kg stone swinging on a 4.0 m string of negligible mass. The stone has a speed of 8.0 m/s when it passes its lowest point. (a) (b) stone's motion? What is the speed when the string is at 60° to the vertical? What is the greatest angle with the vertical that the string will reach during the

3. A pendulum consists of a 2.0 kg stone swinging on a 4.0 m string of negligible mass. The stone has a speed of 8.0 m/s when it passes its lowest point. (a) (b) stone's motion? What is the speed when the string is at 60° to the vertical? What is the greatest angle with the vertical that the string will reach during the

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

A 1400 kg car delivers a constant 42 hp to the drive wheels. We assume the car is traveling on a level road and that all frictional forces may be ignored.A) What is the acceleration of this car when its speed is 10 m/s?B) If the speed of the car is doubled, does its acceleration increase, decrease, or stay the same? Explain
A0.90 kg brick compresses a spring 0.35 meters at point A and the spring has a spring constant of 75 N/m. If the brick is launched from rest from point A, what is its velocity at point B? A ha = 0 hB = 0 VA = 0 Vв > 0 A 10.2 m/s B 3.20 m/s 46.8 m/s D 38.7 m/s O O O O
2. Tarzan, whose weight is W = 688 N, swings from a vine of length L = 18 m. He starts his swing from rest at the edge of a cliff that is h = 3.2 m above the bottom of his trajectory. The vine will break if its tension exceeds T 900 N. W (a) Does the vine break? If the vine does not break, what is the greatest (b) tension in the vine? If the vine breaks, at what angle with respect to the vertical will it break?
1. A 3.0-kg cart on a frictionless horizontal surface is connected with an ideal string and an ideal pulley to a *.0-kg hanging mass. The hanging mass is initially held a height of 0.45 m above the ground. The hanging mass is released. How fast is the hanging mass going as it hits the ground?
3. A 15-lb medicine ball is dropped 2.5 m above the ground. Gravity is the only force acting on the medicine ball. Let y₁ = 2.5 m. A) What is the velocity of the ball 2.5 m above the ground? B) What is the velocity of the ball on the ground (y = 0)? C) What are the potential and kinetic energy, in joules, of the ball at y = 0? D) What is the velocity of the ball 1.5 m above the ground?
3. A 60 kg snowboarder begins to slide down the hill 50 m high on a smooth surface with a radius curvature of 80 m. The next section (AB) is a 20 m flat rough track with u = .3, at the end of which there is an elastic barrier with k = 1000 N/m. Find her speed at point A. b. How much work is done by frictional force? c. What is the maximum compression of the spring? d. Find the rate of heat dissipation along the section AB. e. How long does it take to cover the section AB? а. h k В
A 2.0 kg ball at the end of a 1.8 m string swings in a vertical plane. At its lowest point the ball is moving with a speed of 16 m/s. (a) What is its speed (in m/s) at the top of its path? m/s (b) What is the tension (in N) in the string when the ball is at the bottom and at the top of its path? bottom of its path Ntop of its path N †
Please see attached image for question. Thank you
A very light and flexible rope is 40 cm long and is at one end attached to the ceiling. When we hang a 100 gram weight on its other end, the rope is extended by 6.0 cm. The weight is then pulled vertically down so that the ropes length is 80 cm, and then we let go of it. How fast does the weight fly into the ceiling?
An object is attached to a light string and is forced to move in uniform circular motion on a frictionless table. The radius of the circular path is 0.5m and the maximum amount of tension the rope can withstand without breaking is 16N. What is the maximum amount of kinetic energy this object can have?
I need help with this homework problem.
A stuntman with a mass of 87.0 kg swings across a moat from a rope that is 11.5 m. At the bottom of the swing the stuntman's speed is 7.95 m/s. The rope's breaking strength is 1,000 N. Will the stuntman make it across the moat without falling in? Yes/No (b)What If? What is the maximum speed (in m/s) that the stuntman can have at the bottom of the swing on this vine to safely swing across the river? m/s