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2. a) What must be the separation between a 5.2 kg body and a 2.4 kg body for their gravitational attraction to have a magnitude of F = 2.3x10-1²N . b) Gravity on the moon is g, =1.625m/s".What is the weight of a man who %3D weighs 60 N on Earth.

2. a) What must be the separation between a 5.2 kg body and a 2.4 kg body for their gravitational attraction to have a magnitude of F = 2.3x10-1²N . b) Gravity on the moon is g, =1.625m/s".What is the weight of a man who %3D weighs 60 N on Earth.

College Physics
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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Can you please answer question 2 and all of the sub problems and show all of the steps to the solution 

**Physics Problems and Solutions** 1. **A wagon on the ground (mass = 6 kg) is stationary.** - a) What is the upward force (R) of the ground on the wagon? - b) If the wagon is pulled horizontally by a cord with a force T = 24.0 N that makes an angle of 60 degrees with the horizontal, and no other force is present, what is the acceleration of the wagon? - c) If the same wagon is pulled horizontally by the same force and angle as in part (b), and the friction coefficient μ = 0.3, what would the acceleration be in this case? 2. **Gravitational Force Problem** - a) What must be the separation between a 5.2 kg body and a 2.4 kg body for their gravitational attraction to have a magnitude of F = 2.3 x 10^-12 N? - b) Gravity on the moon is g_m = 1.625 m/s². What is the weight of a man who weighs 600 N on Earth? 3. **Pulley System Problem** A system consists of a vertical wheel (pulley) that is only allowed to rotate (spin). A cord is passed over the pulley, and at each end there is a mass attached to the end of the cord. The mass attached on the left is m₁ = 0.8 kg and at the right the mass is m₂ = 0.5 kg. - a) Calculate the tension in the cord and the acceleration of the system. - b) What are the accelerations of both masses if you cut the cord? Neglect the friction between the cord and wheel.
Transcribed Image Text:**Physics Problems and Solutions** 1. **A wagon on the ground (mass = 6 kg) is stationary.** - a) What is the upward force (R) of the ground on the wagon? - b) If the wagon is pulled horizontally by a cord with a force T = 24.0 N that makes an angle of 60 degrees with the horizontal, and no other force is present, what is the acceleration of the wagon? - c) If the same wagon is pulled horizontally by the same force and angle as in part (b), and the friction coefficient μ = 0.3, what would the acceleration be in this case? 2. **Gravitational Force Problem** - a) What must be the separation between a 5.2 kg body and a 2.4 kg body for their gravitational attraction to have a magnitude of F = 2.3 x 10^-12 N? - b) Gravity on the moon is g_m = 1.625 m/s². What is the weight of a man who weighs 600 N on Earth? 3. **Pulley System Problem** A system consists of a vertical wheel (pulley) that is only allowed to rotate (spin). A cord is passed over the pulley, and at each end there is a mass attached to the end of the cord. The mass attached on the left is m₁ = 0.8 kg and at the right the mass is m₂ = 0.5 kg. - a) Calculate the tension in the cord and the acceleration of the system. - b) What are the accelerations of both masses if you cut the cord? Neglect the friction between the cord and wheel.
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