The Child-Launcher 3000 A super-slide at a county fair has been modified with a horizontal spring launcher at the top. 14 m 11.5 m 7 m 15.) A young child (40 kg) is launched from the spring down the slide. The spring is no longer in contact with the child at position A. If the spring was initially compressed 55 cm and their speed is 9 m/s at the middle bump in the slide's drop (position B), what is the spring constant of the launcher? 16.) The riders come down the slide riding on empty cloth potato sacks. The flat landing track (position C and beyond) has a kinetic coefficient of friction equal to 0.45. How far does the child slide after reaching the bottom?

The Child-Launcher 3000 A super-slide at a county fair has been modified with a horizontal spring launcher at the top. 14 m 11.5 m 7 m 15.) A young child (40 kg) is launched from the spring down the slide. The spring is no longer in contact with the child at position A. If the spring was initially compressed 55 cm and their speed is 9 m/s at the middle bump in the slide's drop (position B), what is the spring constant of the launcher? 16.) The riders come down the slide riding on empty cloth potato sacks. The flat landing track (position C and beyond) has a kinetic coefficient of friction equal to 0.45. How far does the child slide after reaching the bottom?

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

The Child-Launcher 3000
A super-slide at a county fair has
been modified with a horizontal
spring launcher at the top.
14 m
11.5 m
7 m
15.) A young child (40 kg) is
launched from the spring down
the slide. The spring is no longer in contact with the child at position A. If the spring was initially
compressed 55 cm and their speed is 9 m/s at the middle bump in the slide's drop (position B), what is
the spring constant of the launcher?
The riders come down the slide riding on empty cloth potato sacks. The flat landing track
16.)
(position C and beyond) has a kinetic coefficient of friction equal to 0.45. How far does the child slide
after reaching the bottom?

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