One end of a 40-m rope is tied to a tree; the other end is tied to a car stuck in the mud. The motorist pulls sideways on the midpoint of the rope, displacing it a distance of 5 m. If he exerts a force of 90 N under these conditions, determine the force exerted on the car.

One end of a 40-m rope is tied to a tree; the other end is tied to a car stuck in the mud. The motorist pulls sideways on the midpoint of the rope, displacing it a distance of 5 m. If he exerts a force of 90 N under these conditions, determine the force exerted on the car.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 48P: When water freezes, its volume increases by 9.05 . What force per unit area is water capable of...

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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

One end of a 40-m rope is tied to a tree; the other end is tied to a car stuck in the mud. The
motorist pulls sideways on the midpoint of the rope, displacing it a distance of 5 m. If he exerts a
force of 90 N under these conditions, determine the force exerted on the car.

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