Question
Asked Oct 22, 2019

The angular speed of an automobile engine is increased at a constant rate from 982 rev/min to 3230 rev/min in 5.06 s. (a) What is its angular acceleration in revolutions per minute-squared? (b) How many revolutions does the engine make during this 5.06 s interval?

check_circle

Expert Answer

Step 1

Given information:

rev
O 982
min
rev
= 3230
min
t 5.06 s
help_outline

Image Transcriptionclose

rev O 982 min rev = 3230 min t 5.06 s

fullscreen
Step 2

Here, ωi and ωf  are the initial and final angular velocities of an automobile and t is the time taken to increase the angular velocity from initial to final.

a)

Write the formula for the angular acceleration, α and plug the required values to find α.

a =
t
(3230-982) rev/min
1 min
5.06 s
60 S
rev
26656.13
2
min
help_outline

Image Transcriptionclose

a = t (3230-982) rev/min 1 min 5.06 s 60 S rev 26656.13 2 min

fullscreen
Step 3
  1. b)

Write the analog of newton’s equation of motion to calcul...

- 2a0
help_outline

Image Transcriptionclose

- 2a0

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

Physics

Angular Motion

Related Physics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: Jacob and Sophia are playing with a merry-go-round on a playground. The merry-go-round can be modele...

A: The frictional force acts opposite to the motion of the merry-go-round. The expression for the net t...

question_answer

Q: Block 1, of mass m1 = 0.700 kg , is connected over an ideal (massless and frictionless) pulley to bl...

A: The tension on the rope is

question_answer

Q: A permalloy magnet is 1.0 cm in diameter, 30 cm long, andhas the magnetization ? = 1.5 · 104 A/m at ...

A: Given,

question_answer

Q: I’m confused in using Hess law. Can you help me with all three reactions?

A: Manipulate the reactions given below so that they closely resemble the reaction given above,Since NO...

question_answer

Q: Calculate the final velocities of the gliders from the v1i and v2i you measured with error using the...

A: The final velocity of the bumber is,Substitute the values,

question_answer

Q: The planet and its moon gravitationally attract each other. Rank the forces of attraction between ea...

A: The gravitational attraction force is given by, for the first case,

question_answer

Q: After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 55.0 ...

A: Given

question_answer

Q: How do you determine the gravitational acceleration on a planet where the period of a 1.90 m long pe...

A: Given,

question_answer

Q: **8. A molecule of mass 3 x 10-26 kg is moving toward a wall at a speed of 3 x 105 m/s. It bounces b...

A: The mass of molecule,The initial velocity,The final velocity,