Use the worked example above to help you solve this problem. A 15,000 N car starts from rest and rollsdown a hill from a height of 10.0 m (see figure). It then moves across a level surface and collides with alight spring-loaded guardrail.(a) Neglecting any losses due to friction, and ignoring the rotational kinetic energy of the wheels,9.find the maximum distance the spring is compressed. Assume a spring constant of 1.4 x 10° N/m.(b) Calculate the magnitude of the maximum acceleration of the car after contact with the spring,assuming no frictional losses.m/s²(c) If the spring is compressed by only 0.30 m, find the change in the mechanical energy due tofriction.

(a) From the conservation of the energy: Since the car starts from rest and finally it comes to…

Use the worked example above to help you solve this problem. A 15,000 N car starts from rest and rolls down a hill from a height of 10.0 m (see figure). It then moves across a level surface and collides with a light spring-loaded guardrail. (a) Neglecting any losses due to friction, and ignoring the rotational kinetic energy of the wheels, find the maximum distance the spring is compressed. Assume a spring constant of 1.4 x 10° N/m. m (b) Calculate the magnitude of the maximum acceleration of the car after contact with the spring, assuming no frictional losses. m/s? (c) If the spring is compressed by only 0.30 m, find the change in the mechanical energy due to friction.

Use the worked example above to help you solve this problem. A 15,000 N car starts from rest and rolls down a hill from a height of 10.0 m (see figure). It then moves across a level surface and collides with a light spring-loaded guardrail. (a) Neglecting any losses due to friction, and ignoring the rotational kinetic energy of the wheels, find the maximum distance the spring is compressed. Assume a spring constant of 1.4 x 10° N/m. m (b) Calculate the magnitude of the maximum acceleration of the car after contact with the spring, assuming no frictional losses. m/s? (c) If the spring is compressed by only 0.30 m, find the change in the mechanical energy due to friction.

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

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Use the worked example above to help you solve this problem. A 15,000 N car starts from rest and rolls
down a hill from a height of 10.0 m (see figure). It then moves across a level surface and collides with a
light spring-loaded guardrail.
(a) Neglecting any losses due to friction, and ignoring the rotational kinetic energy of the wheels,
9.
find the maximum distance the spring is compressed. Assume a spring constant of 1.4 x 10° N/m.
(b) Calculate the magnitude of the maximum acceleration of the car after contact with the spring,
assuming no frictional losses.
m/s²
(c) If the spring is compressed by only 0.30 m, find the change in the mechanical energy due to
friction.

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