1. Gravity:a. What is the magnitude and direction of the gravitational force that the Earth exerts on you in Sl units? Make areasonable numerical estimate and include units.b. The SI unit of force is a newton. What is a newton in terms of the more basic units, kilograms (kg), meters (m),and seconds (sec)?What is the magnitude and direction of the gravitational force that you exert on the Earth? Consider youranswer to part a.2. Contact Forces¹: Besides gravity, nearly all other forces we will encounter in this course are contact forces, whichmeans that the two objects must be touching for the objects to exert forces on each other.Normal Force: When a surface is touching an object, the surface exerts a force on the object that is perpendicular to the surfaceand pushes into the object. This is called a "normal" force (normal means perpendicular in math). The harder the surfacespress against each other, the larger the normal force.²

a) since your mass is not known so for simplicity i have taken mass to be 70 kg, you can plug-in…

1. Gravity: a. What is the magnitude and direction of the gravitational force that the Earth exerts on you in SI units? Make a reasonable numerical estimate and include units. b. The Sl unit of force is a newton. What is a newton in terms of the more basic units, kilograms (kg), meters (m), and seconds (sec)? c. What is the magnitude and direction of the gravitational force that you exert on the Earth? Consider your answer to part a.

1. Gravity: a. What is the magnitude and direction of the gravitational force that the Earth exerts on you in SI units? Make a reasonable numerical estimate and include units. b. The Sl unit of force is a newton. What is a newton in terms of the more basic units, kilograms (kg), meters (m), and seconds (sec)? c. What is the magnitude and direction of the gravitational force that you exert on the Earth? Consider your answer to part a.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter7: Gravity

Section: Chapter Questions

Problem 64PQ

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