1. A 4.6 kg block is at rest against a horizontal spring that is compressed by 0.40 m. The spring has a spring constant of k, = 2750 After leaving the spring, it travels up a 28° incline to a height of 2.8 m. %3D 7m At the top of the hill is a second spring with a spring constant of k, 350 The horizontal portions 772 are frictionless, but the hill has a coefficient of kinetic friction equal to l = 0.16. Hk = 0.16 k2 = 350 Xi = 0.40 m h = 2.8 m 28° k = 2750- m How fast is the block moving just before it reaches the second spring at the top of the hill? ( How much is the second spring compressed by when the block comes to a stop against it?

1. A 4.6 kg block is at rest against a horizontal spring that is compressed by 0.40 m. The spring has a spring constant of k, = 2750 After leaving the spring, it travels up a 28° incline to a height of 2.8 m. %3D 7m At the top of the hill is a second spring with a spring constant of k, 350 The horizontal portions 772 are frictionless, but the hill has a coefficient of kinetic friction equal to l = 0.16. Hk = 0.16 k2 = 350 Xi = 0.40 m h = 2.8 m 28° k = 2750- m How fast is the block moving just before it reaches the second spring at the top of the hill? ( How much is the second spring compressed by when the block comes to a stop against it?

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 4.6 kg block is at rest against a horizontal spring that is compressed by 0.40 m. The spring has a
spring constant of k, = 2750
After leaving the spring, it travels up a 28° incline to a height of 2.8 m.
%3D
7m
At the top of the hill is a second spring with a spring constant of k,
350
The horizontal portions
772
are frictionless, but the hill has a coefficient of kinetic friction equal to l = 0.16.
Hk = 0.16
k2 = 350
Xi = 0.40 m
h = 2.8 m
28°
k = 2750-
m
How fast is the block moving just before it reaches the second spring at the top of the hill? (
How much is the second spring compressed by when the block comes to a stop against it?

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