Problem 4: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M= 7 kg, length L = 3.1 m) that can be moved so that the pivot is a distance d from the center of the board. This will allow riders to achieve static equilibrium even if they are of different mass, as most people are. You have decided that each rider will be positioned so that his/her center of mass will be a distance xoffset = 16 cm from the end of the board when seated as shown. You have selected a child of mass mj = 29 kg (shown on the right), and an adult of mass m2 = 61 kg (shown on the left) to test out your prototype. Xffset Xoffset Part (a) Determine the distance d in meters. Numeric : A numeric value is expected and not an expression. d = Part (b) Determine the magnitude of the force exerted on the pivot point by the see-saw while in use in newtons. Numeric : A numeric value is expected and not an expression. FN =

Problem 4: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M= 7 kg, length L = 3.1 m) that can be moved so that the pivot is a distance d from the center of the board. This will allow riders to achieve static equilibrium even if they are of different mass, as most people are. You have decided that each rider will be positioned so that his/her center of mass will be a distance xoffset = 16 cm from the end of the board when seated as shown. You have selected a child of mass mj = 29 kg (shown on the right), and an adult of mass m2 = 61 kg (shown on the left) to test out your prototype. Xffset Xoffset Part (a) Determine the distance d in meters. Numeric : A numeric value is expected and not an expression. d = Part (b) Determine the magnitude of the force exerted on the pivot point by the see-saw while in use in newtons. Numeric : A numeric value is expected and not an expression. FN =

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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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

Question

Problem 4: You have been hired to design a family-friendly see-saw. Your design will
feature a uniform board (mass M= 7 kg, length L = 3.1 m) that can be moved so that
the pivot is a distance d from the center of the board. This will allow riders to achieve
static equilibrium even if they are of different mass, as most people are. You have
decided that each rider will be positioned so that his/her center of mass will be a
distance xoffset = 16 cm from the end of the board when seated as shown.
You have selected a child of mass mj = 29 kg (shown on the right), and an adult of
mass m2 = 61 kg (shown on the left) to test out your prototype.
Xoffset
Xoffset
Part (a) Determine the distance d in meters.
Numeric : A numeric value is expected and not an expression.
d =
Part (b) Determine the magnitude of the force exerted on the pivot point by the see-saw while in use in newtons.
Numeric : A numeric value is expected and not an expression.
Fy=

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