Physics

I am having trouble with the last portion of this question. If someone can help me, I would sincerely appreciate it.

A bicycle wheel has a radius R = 32.0 cm and a mass M = 1.82 kg which you may assume to be concentrated on the outside radius. A resistive force f = 147 N (due to the ground) is applied to the rim of the tire. A force F is applied to the sprocket at radius r such that the wheel has an angular acceleration of a = 4.50 rad/s^2. The tire does not slip.

a) If the sprocket radius is 4.53 cm, what is the force F (N)?

(mr^2)(4.5) = (r)(F)- (147)(.32)
(1.82)(.32^2)(4.5) = (.0453)(F)-(147)(.32)
= 1056.9

b) If the sprocket radius is 2.88 cm, what is the force F(N)?

(1.82)(.32^2)(4.5) = (.0288)(F)-(147)(.32) = 1662.45

c) What is the combined mass of the bicycle and rider (kg)?
I am not sure how to do this last part

  1. 👍 0
  2. 👎 0
  3. 👁 307

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Use the Properties of Equality to solve each equation. 1. e + 7= 15 a. 22 b. 8*** c. -8 d. -22 2. r + 18 = 26 a. 8*** b. 6 c. 44 d. 54 3. a - 6= 19 a. 25 b. 13*** c. -13 d. -25 4. b - 3= -4 a. 7 b. 1 c. -1 d. -7*** I am having

  2. Physical Science

    I'm having trouble with the question: Critique the phrase "airspeed velocity of a swallow." What is meant by this. I know a swallow is a bird and velocity is the speed of an object and the direction of its motion. Not sure the

  3. u.s. history

    Do the same possibilities for illegal gains for politicians that existed in the Gilded Age still exist today? I am having trouble answering this question. I know that in the Gilded Age Ulysses S. Grant was the president and that

  4. CHEM- KINETICS

    The rate constant for a reaction is 4.65 L mol-1s-1. The overall order of the reaction is: zero first second third I am having trouble with the order of reactions. I don't understand this question. this is an assignment question

  1. Pre Calculus

    Two forces with magnitudes of 150 and 75 pounds act on an object at angles of 30° and 150°, respectively. Find the direction and magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your

  2. earth science

    How does the wavelength of the infrared portion of the electromagnetic spectrum differ from that of the visible portion of the spectrum?

  3. reading and writing

    Please read the following excerpt from an essay, and answer the question that follows. After Sean was arrested for breaking into a pawnshop, I began to wonder. Why did some kids from my neighborhood end up in trouble while most of

  4. Macbeth help again please

    hi there, in Act 1 Scene 6, Duncan says" See, see, our honored hostess! The love that follows us sometime is our trouble, Which still we thank as love. Herein I teach you How you shall bid God 'ild us for your pains, And thank us

  1. Math

    In the figure shown, a ∥ b a ∥ b . The figure shows two diagonal parallel lines. A horizontal line cuts the two diagonal lines at different points. On the intersection point on the left, the angle formed on the top left

  2. reading and writing

    Please read the following excerpt from an essay. The sentences are numbered to help you respond to the question that follows. (1) After Sean was arrested for breaking into a pawnshop, I began to wonder. (2) Why did some kids from

  3. Chemistry

    What is the compound name for Sb2(CrO4)5? This is the only question I am having trouble with.

  4. English Comp.

    (1) After Sean was arrested for breaking into a pawnshop, I began to wonder. (2) Why did some kids from my neighborhood end up in trouble while most of us didn't? (3) I started out with a question: What causes young people to make

You can view more similar questions or ask a new question.