A Construction Worker Pulls a Box of Tools on a Smooth

question 40

Essay

A construction worker pulls a box of tools on a smooth horizontal floor with a force of 100 N in a direction of 37.0° above the horizontal.The mass of the box and the tools is 40.0 kg.
(a)Draw a free-body diagram for the box.
(b)Calculate the acceleration of the box.
(c)How hard does the floor push up on the box?

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Definitions:

Sample Proportions

A statistic that describes the fraction of items in a sample that meet a certain criteria, often used to estimate the proportion in the total population.

Population Proportions

A rephrased definition: The fraction of individuals in various categories relative to the total population under study.

Cardiac Conduction

The process of electrical signal transmission through the heart, coordinating its beating.

AV Node

The atrioventricular node, a part of the electrical conduction system of the heart that coordinates the top of the heart. It acts as an electrical relay station, slowing the electrical current sent by the sinoatrial node before the signal is permitted to pass down through to the ventricles.