Problem 1: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M= 10 kg, length L = 3.7 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 xffset = 17 cm from the end of the board when seated as shown. You have selected a child of mass m, = 29 kg (shown on the right), and an adult of mass m2 = 62 kg (shown on the left) to test out your prototype. Xoffset Xoffset Part (a) Determine the distance d in meters. d = Part (b) Determine the magnitude of the force exerted on the pivot point by see-saw while in use newtons. FN=| sin() cos() tan() 7 8 HOME cotan() asin() acos() atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END Degrees O Radians BACKSPACE DEL CLEAR Submit Feedback I give up!

Problem 1: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M= 10 kg, length L = 3.7 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 xffset = 17 cm from the end of the board when seated as shown. You have selected a child of mass m, = 29 kg (shown on the right), and an adult of mass m2 = 62 kg (shown on the left) to test out your prototype. Xoffset Xoffset Part (a) Determine the distance d in meters. d = Part (b) Determine the magnitude of the force exerted on the pivot point by see-saw while in use newtons. FN=| sin() cos() tan() 7 8 HOME cotan() asin() acos() atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END Degrees O Radians BACKSPACE DEL CLEAR Submit Feedback I give up!

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

Problem 1: You have been hired to design a family-friendly see-saw. Your design will
feature a uniform board (mass M=10 kg, length L = 3.7 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
;= 17 cm from the end of the board when
seated as shown.
You have selected a child of mass m
= 29 kg (shown on the right), and an adult of mass m2 = 62
kg (shown on the left) to test out your prototype.
Xffset
Xoffset
Part (a) Determine the distance
in meters.
d =
Part (b) Determine the magnitude of the force exerted on the pivot point by the see-saw while in use in newtons.
EN =
sin()
cos()
tan()
7
8
9
HOME
cotan()
asin()
acos()
E
4
atan()
sinh()
acotan()
*
1
2
cosh()
tanh()
cotanh()
+
-
END
Degrees
Radians
BACKSPACE
CLEAR
DEL
Submit
Hint
Feedback
I give up!

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