A child of mass 25.0 kg tries to cross a river by swinging from a vine. The vine is 10.0m long, and his speed at the bottom of the swing is 7.00 m/s. What is the tension inthe vine at the lowest point?Your Answer:AnswerQuestion 14 (3 points)units(Continue the above problem) What is the speed of the child at a point 1.00 metersabove the bottom of the swing after passing it? ignore air resistance.

Answered: Image /qna-images/answer/ce0b053e-df5f-444e-93a7-480eb5b6579c.jpg

Answered: A child of mass 25.0 kg tries to cross…

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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Maria sets up a simple track for her toy block (m 0.54 m Need Help? = (a) Neglecting friction, what is the speed of the block when it reaches the bottom of the curve (the beginning of the horizontal section of track)? 3.25 m/s 0.40 kg) as shown in the figure below. She holds the block at the top of the track, 0.54 m above the bottom, and releases it from rest. (b) If friction is present on the horizontal section of track and the block comes to a stop after traveling 0.82 m along the bottom, what is the magnitude of the friction force acting on the block? 2.11 X Your response differs from the correct answer by more than 10%. Double check your calculations. N Read It
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?
A gymnast is swinging on a high bar. The distance between his waist and the bar is 1.28 m, as the drawing shows. At the top of the swing his speed is momentarily zero. Ignoring friction and treating the gymnast as if all of his mass is located at his waist, find his speed at the bottom of the swing.
5. Moumita is holding a mass m=0.50kg, which is connected to the bottom of a vertical spring with spring constant k=10.0ON/m. She is holding the mass in place at a height h=1.5m above the floor. The spring is relaxed in this condition. When Moumita lets go of the mass, how far will the mass fall before it turns around and starts to travel upwards?
A mass of 0.21 kg is initially at rest on a hor- izontal surface. A force, given by F⃗ = Fx ˆı, acts on the mass. The horizontal component Fx is plotted below as a function of position along the x-axes. The coefficient of kinetic friction is 0.044. The acceleration of gravity is 9.8 m/s2 . Calculate the kinetic energy K of the mass as it reaches 5 m. Answer in units of J.
A child stands on a bank beside a pond, grasps the end of a 20.0 m long rope attached to a nearby tree and swings out to drop into the water. When the rope makes an angle of 15.0⁰ with the vertical, the child's speed is 5.00 m/s. a) At what point in the swing does the child's maximum speed occur? b) What is the child's maximum speed? Ignore all frictional effects. c) Assuming the child started from rest, what angle did the rope initially make with respect to the vertical?
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?
Answer correctly the question: An m=3.84kg block situated on a rough incline is connected to a spring of negligible mass having a spring constant of k=100. N/m. The pulley is frictionless and massless. The block starts at rest at the position where the spring is unstretched. The block moves 15.1 cm down the incline before coming to rest. Take θ=38.8 as the angle. Calculate the coefficient of kinetic friction between block and incline. The answer is not 0.29
A child sits on a swing that is 0.535 m above the ground when it hangs vertically. The length of the rope of the swing is 3.29 m. A mother pulls the child and swings back, and gives the child an initial push. At the moment when the parent's hands leave the child, the child is 1.24 m above the ground and has a speed of 1.61 m/s. Ignoring friction and air resistance, what is the child's speed (in m/s) when passing through the lowest point (0.535 m above the ground)? The mass of the child and swing together is 17.7 kg.
Please don't provide handwritten solution....
You are pushing your brother on a swing that has chains which are 3.5 m long. Treating the swing as a simple pendulum, how often should you push your brother so that he reaches the greatest height?
3. Imagine building a large pendulum by attaching one end of a 3.25-meter-long cable to the ceiling and the other end to a bowling ball that weighs 64.5 N. If you pull the ball to the side, it will swing back and forth in a circular arc. In one experiment you measure the speed of the swinging ball to be 4.25 m/s as it passes through its lowest point (when the cable is vertical). At that moment, find a. the magnitude and direction of the ball's acceleration b. the tension in the cable

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