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A system consists of a vertical (spin). A cord is passed over th attached to the end of the cord

A system consists of a vertical (spin). A cord is passed over th attached to the end of the cord

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 3 and all of the sub problems and show all of the steps to the solution 

**Physics Problems: Forces and Motion** 1. **A wagon on the ground (mass = 6 kg) is stationary.** a) What is the upward force \( F \) the ground exerts on the wagon? b) If the wagon is pulled horizontally by a cord with a force \( T = 240 \, N \) 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 is \( \mu = 0.3 \), what would the acceleration be in this case? 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 \( F = 2.3 \times 10^{-12} \, N \)? b) Gravity on the moon is \( \frac{g}{m} = 1.62 \, \text{m/s}^2 \). What is the weight of a man who weighs 600 N on Earth? 3. 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 \( m_1 = 0.8 \, \text{kg} \) and at the right the mass is \( m_2 = 0.5 \, \text{kg} \). a) Calculate both 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 cord and wheel.
Transcribed Image Text:**Physics Problems: Forces and Motion** 1. **A wagon on the ground (mass = 6 kg) is stationary.** a) What is the upward force \( F \) the ground exerts on the wagon? b) If the wagon is pulled horizontally by a cord with a force \( T = 240 \, N \) 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 is \( \mu = 0.3 \), what would the acceleration be in this case? 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 \( F = 2.3 \times 10^{-12} \, N \)? b) Gravity on the moon is \( \frac{g}{m} = 1.62 \, \text{m/s}^2 \). What is the weight of a man who weighs 600 N on Earth? 3. 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 \( m_1 = 0.8 \, \text{kg} \) and at the right the mass is \( m_2 = 0.5 \, \text{kg} \). a) Calculate both 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 cord and wheel.
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