A child's toy consists of a m = 45 g monkey suspended from a spring of ss and spring constant k. When the toy monkey is first hung on the sprin m reaches equilibrium, the spring has stretched a distance of x= 17.7 cm he diagram. This toy is so adorable you pull the monkey down an 7.1 cm from equilibrium and release it from rest, and smile with deligh playfully up and down.

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Chapter7: Conservation Of Energy
Section: Chapter Questions
Problem 55P: A horizontal spring attached to a wall has a force constant of k = 850 N/m. A block of mass m = 1.00...
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Conservation and energy Q6: please answer parts a, c, and d. Please explain reasoning for all steps even if minor. Part b is answered as shown.

Problem 6: A child's toy consists of a m = 45 g monkey suspended from a spring of
negligible mass and spring constant k. When the toy monkey is first hung on the spring
and the system reaches equilibrium, the spring has stretched a distance of x = 17.7 cm,
as shown in the diagram. This toy is so adorable you pull the monkey down an
additional d = 7.1 cm from equilibrium and release it from rest, and smile with delight
as it bounces playfully up and down.
Unstretched
Position
Equilibrium
Stretched Position
Part (a) Using the given information, determine the spring constant, k, in Newtons per meter, of the spring.
Numeric : Anumeric value is expected and not an expression.
k =.
Part (b) Select the free-body diagram that best represents the forces acting on the monkey as you are pulling it down, immediately before you let
go.
SchematicChoice :
F,
-spring
spring
applied
spring
gravity
applied
F.
-spring
spring
spring
Teravity
gravity
F.
F
gravity
applied
applied
Part (c) Calculate the total potential energy, Epottom, in joules, stored in the stretched spring immediately before you release it. Take the zero of
potential energy at the spring's unstretched position before the monkey is suspended from it.
Numeric : Anumeric value is expected and not an expression.
Epottom =
Part (d) Assume that the system has zero gravitational potential energy at the lowest point of the motion. Derive an expression for the total
mechanical energy, Eequilibrium, of the system as the monkey passes through the equilibrium position in terms of m, x, d, g, k, and the speed of the
monkey, ve.
Expression :
Eequilibrium =
Select from the variables below to write your expression. Note that all variables may not be required.
a, B, 0, a, d, g, hmay, i, j, k, m, P, t, ve, X
Part (e) Calculate the speed of the monkey, ve, in meters per second, as it passes through equilibrium.
Numeric : A numeric value is expected and not an expression.
Ve =
Part (f) Derive an expression for the total mechanical energy of the system as the monkey reaches the top of the motion, E1op. in terms of m, x, d,
k, the maximum height above the bottom of the motion, hmax, and the variables available in the palette.
Expression :
Etop =
Select from the variables below to write your expression. Note that all variables may not be required.
a. ß. 0, a, d, g. hmax- i,j.k, m, P, t, v. x
Part (g) Calculate the maximum displacement, h, in centimeters, above the equilibrium position, that the monkey reaches.
Numeric : A numeric value is expected and not an expression.
h =
wwww
Transcribed Image Text:Problem 6: A child's toy consists of a m = 45 g monkey suspended from a spring of negligible mass and spring constant k. When the toy monkey is first hung on the spring and the system reaches equilibrium, the spring has stretched a distance of x = 17.7 cm, as shown in the diagram. This toy is so adorable you pull the monkey down an additional d = 7.1 cm from equilibrium and release it from rest, and smile with delight as it bounces playfully up and down. Unstretched Position Equilibrium Stretched Position Part (a) Using the given information, determine the spring constant, k, in Newtons per meter, of the spring. Numeric : Anumeric value is expected and not an expression. k =. Part (b) Select the free-body diagram that best represents the forces acting on the monkey as you are pulling it down, immediately before you let go. SchematicChoice : F, -spring spring applied spring gravity applied F. -spring spring spring Teravity gravity F. F gravity applied applied Part (c) Calculate the total potential energy, Epottom, in joules, stored in the stretched spring immediately before you release it. Take the zero of potential energy at the spring's unstretched position before the monkey is suspended from it. Numeric : Anumeric value is expected and not an expression. Epottom = Part (d) Assume that the system has zero gravitational potential energy at the lowest point of the motion. Derive an expression for the total mechanical energy, Eequilibrium, of the system as the monkey passes through the equilibrium position in terms of m, x, d, g, k, and the speed of the monkey, ve. Expression : Eequilibrium = Select from the variables below to write your expression. Note that all variables may not be required. a, B, 0, a, d, g, hmay, i, j, k, m, P, t, ve, X Part (e) Calculate the speed of the monkey, ve, in meters per second, as it passes through equilibrium. Numeric : A numeric value is expected and not an expression. Ve = Part (f) Derive an expression for the total mechanical energy of the system as the monkey reaches the top of the motion, E1op. in terms of m, x, d, k, the maximum height above the bottom of the motion, hmax, and the variables available in the palette. Expression : Etop = Select from the variables below to write your expression. Note that all variables may not be required. a. ß. 0, a, d, g. hmax- i,j.k, m, P, t, v. x Part (g) Calculate the maximum displacement, h, in centimeters, above the equilibrium position, that the monkey reaches. Numeric : A numeric value is expected and not an expression. h = wwww
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