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Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 9 - Problem 16p
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 9 - Problem 16p

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# Three children are trying to balance on a seesaw, which

ISBN: 9780130606204 3

## Solution for problem 16P Chapter 9

Physics: Principles with Applications | 6th Edition

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Problem 16P

Problem 16P

Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 3.6 m long (Fig. 9–50). Two playmates are already on either end. Boy A has a mass of 50 kg, and girl B a mass of 35 kg. Where should girl C, whose mass is 25 kg, place herself so as to balance the seesaw?

FIGURE 9–50

Step-by-Step Solution:

SolutionStep 1 of 3 The momentum is quantity of measurement of motion of object.Mathematically, p=mv In an isolated system , the total momentum is conserved because there is noexternal force acting on it .Consider two bodies Initial momentum of the bodies before collision p and p resp1ctively 2 final momentum of the bodies after collision p 1 and p 2 respectivelyFrom newton's second lawF= dp dt Force exerted on 1 by 2 ,F = p1 1 12 t p2 2 Force exerted on 2 by 1 ,F = 21 t By newton's third lawF =-F 12 21p p (p p ) t 1= t 2 p 1- p 1(p 2- p )2 p 1- p 1p 2+ p 2 p - p =p + p 1 2 1 2 p = p f i\n

Step 2 of 3

Step 3 of 3

##### ISBN: 9780130606204

This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. Since the solution to 16P from 9 chapter was answered, more than 495 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 16P from chapter: 9 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. This full solution covers the following key subjects: mass, balance, seesaw, Girl, herself. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. The answer to “Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 3.6 m long (Fig. 9–50). Two playmates are already on either end. Boy A has a mass of 50 kg, and girl B a mass of 35 kg. Where should girl C, whose mass is 25 kg, place herself so as to balance the seesaw?FIGURE 9–50” is broken down into a number of easy to follow steps, and 73 words.

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