In a baby bouncer door swing, the child bounces in a harness suspended from a doorframe...
In a baby bouncer door swing, the child bounces in a harness suspended from a doorframe by a spring constant.
(a) If the spring stretches 0.242 m while supporting an 8.1-kg child, what is its spring constant?
(b) What is the time for one complete bounce of this child?
(c) What is the child’s maximum velocity if the amplitude of her bounce is 0.222 m?
Homework Answers
a)kx=8.1g
k*.242=8.1*10
k=334.71N/m
b)w=(k/m)^.5
=(334.71/8.1)^.5
=6.43
time=2pi/w
=0.98s
c)maxm velocity=Aw
=.222*6.43
=1.43m/s
Add Answer to:
In a baby bouncer door swing, the
child bounces in a harness suspended from a doorframe...
A child bounces in a harness suspended from a door frame by three elastic bands.
A child bounces in a harness suspended from a door frame by three elastic bands. (a) If each elastic band stretches 0.220 m while supporting a 5.55-kg child, what is the force constant for each elastic band? (b) What is the time for one complete bounce of this child? (c) What is the child's maximum velocity if the amplitude of her bounce is 0.220 m?
The device pictured in the figure entertains infants while keeping them from wandering
The device pictured in the figure entertains infants while keeping them from wandering. The child bounces in a harness, with a spring constant k, and is suspended off of the ground. Part (a) If the spring stretches x1 = 0.25 m from equilibrium while supporting an 8.5 kg child, what is its spring constant, in newtons per perter? Part (b) What is the time, in seconds, for one complete bounce of this child about the point x? Part (c) What is the child's...
The device pictured in the figure entertains infants while keeping them from wandering. The child bounces...
The device pictured in the
figure entertains infants while keeping them from wandering. The
child bounces in a harness, with a spring constant k, and is
suspended off of the ground.
HW 12 - Thermal Physics Begin Date: 11/13/2019 12:01:00 AM -- Due Date: 11/22/2019 11:59:00 PM End Date: 11/29/2019 11:59:00 PM (11%) Problem 9: The device pictured in the figure entertains infants while keeping them from wandering. The child bounces in a harness, with a spring constant k, and...
A baby bounces up and down in her crib. Her mass is 13.0 kg, and the...
A baby bounces up and down in her crib. Her mass is 13.0 kg, and the crib mattress can be modeled as a light spring with force constant 522 N/m. (a) The baby soon learns to bounce with maximum amplitude and minimum effort by bending her knees at what frequency? (b) If she were to use the mattress as a trampoline—losing contact with it for part of each cycle—what minimum amplitude of oscillation does she require?
±Baby Bounce with a Hooke One of the pioneers of modern science, Robert Hooke (1635-1703), studied...
±Baby Bounce with a Hooke One of the pioneers of modern science, Robert Hooke (1635-1703), studied the elastic properties of springs and formulated the law that bears his name. Hooke found the relationship among the force a spring exerts, F, the distance from equilibrium the end of the spring is displaced, , and a number k called the spring constant (or, sometimes, the force constant of the spring). According to Hooke, the force of the spring is directly proportional to...
on 41. A 25 kg child plays on a swing having support ropes that are 2.2...
on 41. A 25 kg child plays on a swing having support ropes that are 2.2 m long. A friend pull back until the ropes are 42 degrees from the vertical and releases her from rest. (a) What is the potential energy of the child just as she is released, compared with the potential energy at the bottom of the swing? (b) how fast will she be moving at the bottom of the swing? (c) how much work does the...
In the future, parents will no longer need to push their child on a swing. You...
In the future, parents will no longer need to push their child on a swing. You have invented an automated child launching device. Your device is modeled as shown. The length of the swing's rope is 3 m and your child has a mass of 40 kg. What spring constant will you require if it can only compress 30 cm before it will launch your loved one to a maximum 45 degree angle? what max acceleration will the kid experience...
A spring stress 0.150 m when a 0.300 kg mass is gently suspended from it as...
A spring stress 0.150 m when a 0.300 kg mass is gently suspended from it as fig below. The spring is then set up horizontally with 0.300 kg mass resting on a frictionless table. The mass is pulled so that the spring is stretched 0.100 m from the equilibrium point, and released from rest. Determine: a) the spring stiffness constant K; b) the amplitude of the horizontal oscillation A; c) the magnitude of the maximum velocity Vmax? d) the magnitude...
Can someone please help with 1) part A of top and 2) part B of bottom?...
Can someone please help with 1) part A of top and 2) part B of
bottom? Can't seem to get them!
Part a A 0.561-kg ball is hung vertically from a spring. The spring stretches by 5.38 cm from its natural length when the ball is hanging at equilibrium. A child comes along and pulls the ball down an additional 5cm, then lets go. How long (in seconds) will t take the ball to swing up and down exactly 4...
A 20 kg child is on a swing that hangs from 2.0-m-long chains. You may want...
A 20 kg child is on a swing that hangs from 2.0-m-long chains. You may want to review (Pages 234 - 238) . What is her maximum speed if she swings out to a 42 ∘ angle? Express your answer to two significant figures and include the appropriate units.
The device pictured in the
figure entertains infants while keeping them from wandering. The
child bounces in a harness, with a spring constant k, and is
suspended off of the ground.
HW 12 - Thermal Physics Begin Date: 11/13/2019 12:01:00 AM -- Due Date: 11/22/2019 11:59:00 PM End Date: 11/29/2019 11:59:00 PM (11%) Problem 9: The device pictured in the figure entertains infants while keeping them from wandering. The child bounces in a harness, with a spring constant k, and...
±Baby Bounce with a Hooke One of the pioneers of modern science, Robert Hooke (1635-1703), studied the elastic properties of springs and formulated the law that bears his name. Hooke found the relationship among the force a spring exerts, F, the distance from equilibrium the end of the spring is displaced, , and a number k called the spring constant (or, sometimes, the force constant of the spring). According to Hooke, the force of the spring is directly proportional to...
on 41. A 25 kg child plays on a swing having support ropes that are 2.2 m long. A friend pull back until the ropes are 42 degrees from the vertical and releases her from rest. (a) What is the potential energy of the child just as she is released, compared with the potential energy at the bottom of the swing? (b) how fast will she be moving at the bottom of the swing? (c) how much work does the...
In the future, parents will no longer need to push their child on a swing. You have invented an automated child launching device. Your device is modeled as shown. The length of the swing's rope is 3 m and your child has a mass of 40 kg. What spring constant will you require if it can only compress 30 cm before it will launch your loved one to a maximum 45 degree angle? what max acceleration will the kid experience...
A spring stress 0.150 m when a 0.300 kg mass is gently suspended from it as fig below. The spring is then set up horizontally with 0.300 kg mass resting on a frictionless table. The mass is pulled so that the spring is stretched 0.100 m from the equilibrium point, and released from rest. Determine: a) the spring stiffness constant K; b) the amplitude of the horizontal oscillation A; c) the magnitude of the maximum velocity Vmax? d) the magnitude...
Can someone please help with 1) part A of top and 2) part B of
bottom? Can't seem to get them!
Part a A 0.561-kg ball is hung vertically from a spring. The spring stretches by 5.38 cm from its natural length when the ball is hanging at equilibrium. A child comes along and pulls the ball down an additional 5cm, then lets go. How long (in seconds) will t take the ball to swing up and down exactly 4...
Most questions answered within 3 hours.
-
You purchase your daily coffee at the Chemist’s Coffeehouse and
have a choice of two cups:...
asked 2 hours ago -
Which of the following pairs of chemicals could be used to make
a buffer solution?
A.)...
asked 1 hour ago -
Problem 16-51 Sales
Activity Variance (LO 16-3)Odessa, Inc., reports the following
information concerning operations for the...
asked 2 hours ago -
Pictured on the right are thee point charges Q1 = 18.4 μC, Q2 =
-30.6 μC,...
asked 2 hours ago -
A graduate student is conducting research in psychology and
needs to obtain the IQ scores of...
asked 3 hours ago -
R2.84: There are 2 defective products in a production lot of 10.
An inspector randomly selected...
asked 4 hours ago -
Consider the following equilibrium system: COCl2(g) CO(g) +
Cl2(g) A 10.00 L evacuated flask is filled...
asked 5 hours ago -
1) What are the two distinct steps that one needs to perform
when developing a data...
asked 5 hours ago -
2) Write a C++ program that uses a class called “Degree” to
obtain the trigonometric
values...
asked 6 hours ago -
1. In eukaryotic cells the genomes of
&
asked 6 hours ago -
The standard enthalpy of propanol (C3H7OH) is -303.0 kJ/mol.
Compute both of the
gross and net...
asked 6 hours ago -
Why PWM using H-bridge for control motor speed is more power
effiecient than the linear amplifier...
asked 6 hours ago