(33%) Problem 2: A merry-go-round is a playground ride that consists of a large disk mounted...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
(33%) Problem 2: A merry-go-round is a playground ride that consists of a large disk mounted to that it can freely rotate in a horizontal plane. The merry-go-round shown is initially at rest, has a radius R = 1.3 meters, and a mass M = 286 kg. A small boy of mass m = 49 kg runs tangentially to the merry-go-round at a speed of v= 1.1 m/s, and jumps on. Randomized Variables R = 1.3 meters M = 286 kg m = 49 kg v = 1.1 m/s ▷ A 17% Part (a) Calculate the moment of inertia of the merry-go-round, in kg. m². I= sin() cos() cotan() asin() atan() acotan() cosh() tanh() ●Degrees Submit Hints: 0% deduction per hint. Hints remaining: 3 tan() acos() sinh() cotanh() Radians Hint П 7 8 9 4 5 6 1 2 + 0 VO BACKSPACE ( ^/ ^ 1 - 3 HOME END DEL CLEAR Feedback I give up! Feedback: 0% deduction per feedback. Ⓒtheexpertta.com Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 4 (0% per attempt) detailed view A 17% Part (b) Immediately before the boy jumps on the merry go round, calculate his angular speed (in radians/second) about the central axis of the merry-go-round. A 17% Part (c) Immediately after the boy jumps on the merry go round, calculate the angular speed in radians/second of the merry-go-round and boy. A 17% Part (d) The boy then crawls towards the center of the merry-go-round along a radius. What is the angular speed in radians/second of the merry-go-round when the boy is half way between the edge and the center of the merry go round? A 17% Part (e) The boy then crawls to the center of the merry-go-round. What is the angular speed in radians/second of the merry-go-round when the boy is at the center of the merry go round? A 17% Part (f) Finally, the boy decides that he has had enough fun. He decides to crawl to the outer edge of the merry-go-round and jump off. Somehow, he manages to jump in such a way that he hits the ground with zero velocity with respect to the ground. What is the angular speed in radians/second of the merry-go-round after the boy jumps off? (33%) Problem 2: A merry-go-round is a playground ride that consists of a large disk mounted to that it can freely rotate in a horizontal plane. The merry-go-round shown is initially at rest, has a radius R = 1.3 meters, and a mass M = 286 kg. A small boy of mass m = 49 kg runs tangentially to the merry-go-round at a speed of v= 1.1 m/s, and jumps on. Randomized Variables R = 1.3 meters M = 286 kg m = 49 kg v = 1.1 m/s ▷ A 17% Part (a) Calculate the moment of inertia of the merry-go-round, in kg. m². I= sin() cos() cotan() asin() atan() acotan() cosh() tanh() ●Degrees Submit Hints: 0% deduction per hint. Hints remaining: 3 tan() acos() sinh() cotanh() Radians Hint П 7 8 9 4 5 6 1 2 + 0 VO BACKSPACE ( ^/ ^ 1 - 3 HOME END DEL CLEAR Feedback I give up! Feedback: 0% deduction per feedback. Ⓒtheexpertta.com Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 4 (0% per attempt) detailed view A 17% Part (b) Immediately before the boy jumps on the merry go round, calculate his angular speed (in radians/second) about the central axis of the merry-go-round. A 17% Part (c) Immediately after the boy jumps on the merry go round, calculate the angular speed in radians/second of the merry-go-round and boy. A 17% Part (d) The boy then crawls towards the center of the merry-go-round along a radius. What is the angular speed in radians/second of the merry-go-round when the boy is half way between the edge and the center of the merry go round? A 17% Part (e) The boy then crawls to the center of the merry-go-round. What is the angular speed in radians/second of the merry-go-round when the boy is at the center of the merry go round? A 17% Part (f) Finally, the boy decides that he has had enough fun. He decides to crawl to the outer edge of the merry-go-round and jump off. Somehow, he manages to jump in such a way that he hits the ground with zero velocity with respect to the ground. What is the angular speed in radians/second of the merry-go-round after the boy jumps off?
Expert Answer:
Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Posted Date:
Students also viewed these physics questions
-
A weather vane initially at rest has a moment of inertia of 0.103 kg m2 about its axis of rotation. A 41.0 g piece of clay is thrown at the vane and sticks to it at a point 24.5 cm from the axis....
-
A weather vane initially at rest has a moment of inertia of 0.103 kg m2 about its axis of rotation. A 49.5 g piece of clay is thrown at the vane and sticks to it at a point 12.5 cm from the axis....
-
The blocks A and B shown are initially at rest and have masses of mA=225 kg and mB=105 kg . Neglect the mass of the rope and pulley system and assume block B moves only in the vertical direction,...
-
A share of preferred stock pays a dividend of $5 per year. If the price of this preferred stock is currently $100, what is the cost of preferred stock? Fill in the blank
-
Name three approaches to break-even analysis. Briefly explain how each approach works.
-
In addition to the regular trade discount of 25% and a volume purchase discount of 8 1/3% from the manufacturer, Appliance Warehouse is offered a further 5% discount for orders placed in January. a....
-
\(\left(12^{5} ight)^{3}\) Simplify the expression.
-
A Del Hardware has four employees who are paid on an hourly basis plus time-and-a half for all hours worked in excess of 40 a week. Payroll data for the week ended March 15, 2010, are presentd below....
-
Kindly answer the following: a. What would be recorded as the cash payment if the invoice is paid within the discount period? b. By what date does the invoice need to be paid in order to take...
-
The fraud triangle identifies conditions or circumstances that are often precursors to financial fraud. 1)Define the three categories of fraud risk factors that are included in the fraud triangle and...
-
What does your interview tell you about the role expectations and role behavior? To identify roles and role behavior, interview a married woman who works outside the home and one who does not have an...
-
Consider the linear program min x1 + x2 s.t. x1 x21, x1, x2 0. a) Determine all solutions of (2). b) Transform (2) into standard form. c) For 70 determine the solution (XT, YT, ST) of the central...
-
For simplicity, suppose all four banks have the same leverage ratio of L before the negative shocked happened. Please answer the questions below. i. How high can the leverage ratio L be for there to...
-
1. Why locking can slow down performance? 2. What do we mean by Rewriting SQL? 3. Describe the different SQL server indexes and when do you use each one. 4. Describe the different type of...
-
1. Explain the proponents of the discussions surrounding the certainly some overlap in what it seems to be statistical reporting to government in cost accounting. 2.what is the management scheme of...
-
The pollen count distribution for Los Angeles in October is not normally distributed, with u= 8.0 and standard deviation of 1.0. A sample of size 64 is taken. Find the 75th percentile of sample mean....
-
The concession stand at the baseball park gets (on average) 20 customers per inning. The cashier can process 30 customers per inning (on average). The concession manager does not understand how they...
-
What are the typical record-at-a-time operations for accessing a file? Which of these depend on the current file record?
-
A Texas cockroach of mass 0.17 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has radius 15 cm, rotational inertia 5.0 x 10 -3 kg m 2 , and...
-
At time t = 0, an electron with kinetic energy 12keV moves through x = 0 in the positive direction of an x axis that is parallel to the horizontal component of Earth's magnetic field B. The field's...
-
After a fall, a 95 kg rock climber finds himself dangling from the end of a rope that had been 15 m long and 9.6 mm in diameter but has stretched by 2.8 cm. For the rope, calculate (a) The strain,...
-
Which statement is false? a. Waste Management made top drawer entries. b. Richard Scrushy of Tyco was never convicted. c. Adelphia used special purpose entities to commit their fraud. d....
-
Which statement is false? a. SASNo. 99 does not prohibit clients from preparing confirmations. b. Enron issued \(\$ 1.2\) billion of stock to an SPE and recorded a \(\$ 1.2\) billion notes...
-
Who is responsible for internal controls? a. External auditors b. Internal auditors c. Management d. Audit Committee e. Board of Directors
Study smarter with the SolutionInn App