A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled as a disk with a mass of 210 kg , is spinning at 17 rpm. John runs tangent to the merry-go-round at 5.2 m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30 kg.What is the merry-go-round's angular velocity, in rpm, after John jumps on?

Question
Asked Nov 18, 2019
245 views

A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled as a disk with a mass of 210 kg , is spinning at 17 rpm. John runs tangent to the merry-go-round at 5.2 m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30 kg.

What is the merry-go-round's angular velocity, in rpm, after John jumps on?

check_circle

Expert Answer

Step 1

Write an expression for conserva...

help_outline

Image Transcriptionclose

L L MRa -+ mR2 + mvR 2 (MR + mR 2 + mR 2

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Advanced Physics

Related Advanced Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: 190, which has an atomic mass of 19.003577 u, decays via p decay to 19F, which has an atomic mass of...

A: The energy release in the beta decay process is

question_answer

Q: What is the wave-particle duality?

A: Wave-particle duality states that the light and the matter exhibit the properties of both the waves ...

question_answer

Q: Learn about a current or planned mission to study the atmosphere of one of the terrestrial planets (...

A: The current mission which planned to study the atmosphere of the Venus is named Akatsuki, also calle...

question_answer

Q: I'm having some issues understanding my physics homework. It doesnt look like what we were doing in ...

A: (a)(i) Point P, where the speed is maximum is located at the lowest point on the roller coaster. At ...

question_answer

Q: In the late 1800's, twenty-five percent of the world's nickel production came from Nickel Mines, Pen...

A: Write the kinematic equation for acceleration

question_answer

Q: 3) List the type of electromagnetic waves from lowest to highest frequencies. Develop an acronym for...

A: 3) the electromagnetic waves from lowest to highest frequency are given by,radiowave, microwave, inf...

question_answer

Q: Do you think that the transit method can be used to study the atmosphere of Mercury? [Hint: look at ...

A: A transit occurs when a planet passes over the face of the sun. During this event, information on th...

question_answer

Q: A 44 kg , 5.2-m-long beam is supported, but not attached to, the two posts in the figure. A 20 kg bo...

A: The figure shows when the boy goes from left with normal reaction NL to right with normal reaction N...

question_answer

Q: Evaluate ⟨x⟩, ⟨px ⟩, ∆x, ∆p_x , and ∆x ∆p_x for the normalized wavefunction where L is a positive co...

A: The expectation value of x is: