uniform wooden plank of mass 25 kg and length 7.0 m as shown in FIGURE 2.1. The fulcrum is located at the centre of the plank. (a) (b) @ Start with a free body diagram of the plank, determine the position from the fulcrum the husband should sit, .x so that the system is balanced. Determine the magnitude of the force exerted on the plank by the fulcrum. FIGURE 2.2 A pot of mass m is then added to the wooden plank as shown in FIGURE 2.2. In what direction should the husband shift in order to balance the system? Reasoning your answer.

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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FIGURE 2.1
A man and his wife, with masses of 80 kg and 50 kg, respectively, are sitting on a
uniform wooden plank of mass 25 kg and length 7.0 m as shown in FIGURE 2.1. The
fulcrum is located at the centre of the plank.
(a)
(b)
7.0 m
O
Start with a free body diagram of the plank, determine the position from the
fulcrum the husband should sit, x so that the system is balanced.
Determine the magnitude of the force exerted on the plank by the fulcrum.
FIGURE 2.2
A pot of mass m is then added to the wooden plank as shown in FIGURE 2.2.
In what direction should the husband shift in order to balance the system?
Reasoning your answer.
Transcribed Image Text:2 FIGURE 2.1 A man and his wife, with masses of 80 kg and 50 kg, respectively, are sitting on a uniform wooden plank of mass 25 kg and length 7.0 m as shown in FIGURE 2.1. The fulcrum is located at the centre of the plank. (a) (b) 7.0 m O Start with a free body diagram of the plank, determine the position from the fulcrum the husband should sit, x so that the system is balanced. Determine the magnitude of the force exerted on the plank by the fulcrum. FIGURE 2.2 A pot of mass m is then added to the wooden plank as shown in FIGURE 2.2. In what direction should the husband shift in order to balance the system? Reasoning your answer.
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