2. Suppose Andrea and Beatrice push horizontally, but in exactly opposite directions, on awagon carrying food to a tailgate party. Andrea exerts a force of 85.0 N and Beatrice exertsa force of 100.0 N, friction is 12.0 N and the mass of the food and drink is 27.0 kg.(a) Define the system of interest and draw a free body diagram for it.(b) Calculate the acceleration of that system.(c) Find the acceleration for slightly larger friction of 15.0 N.

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Description: 2. Suppose Andrea and Beatrice push horizontally, but in exactly opposite directions, on awagon carrying food to a tailgate party. Andrea exerts a force of 85.0 N and Beatrice exertsa force of 100.0 N, friction is 12.0 N and the mass of the food and

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College Physics

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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2. Suppose Andrea and Beatrice push horizontally, but in exactly opposite directions, on a
wagon carrying food to a tailgate party. Andrea exerts a force of 85.0 N and Beatrice exerts
a force of 100.0 N, friction is 12.0 N and the mass of the food and drink is 27.0 kg.
(a) Define the system of interest and draw a free body diagram for it.
(b) Calculate the acceleration of that system.
(c) Find the acceleration for slightly larger friction of 15.0 N.

Expert Solution

Step 1

Given:-

The mass of the food and drink is m = 27 kg

Andrea exerts a force F_A= 85 N

Beatrice exerts a force F_B= 100 N

The friction force is F_r= 12.0 N

Andrea and Beatrice exert a force in the opposite direction

Find:-

a) free body diagram of the system

b) the acceleration of the system

c) If the friction force is 15 N, acceleration of the system?

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