1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kaheart [24]
2 years ago
14

A flywheel with radius of 0.300 m starts from rest and accelerates with a constant angular acceleration of 0.400 rad/s2.For a po

int on the rim of the flywheel, what is the magnitude of the tangential acceleration after 2.00 s of acceleration
Physics
1 answer:
oksian1 [2.3K]2 years ago
6 0

Answer:

0.12\ m/s^2

Explanation:

Given that,

The radius of a flywheel, r = 0.3 m

Angular acceleration of a flywheel, \alpha =0.4\ rad/s^2

We need to find the magnitude of the tangential acceleration after 2.00 s of acceleration.

The relation between the tangential and angular acceleration is given by :

a_t=r\alpha \\\\a_t=0.3\times 0.4\\\\a_t=0.12\ m/s^2

So, the required magnitude of tangential acceleration is 0.12\ m/s^2.

You might be interested in
A pickup truck is carrying a 10.0 kgkg toolbox, but the tailgate of the truck is missing, so the box can slide out if it starts
iren2701 [21]

Answer:

Shortest time = 3.47 seconds

Explanation:

We know that Force of gravity of an object is given by;

F_g = mg

Also, Force due to kinetic friction is given as;

F_friction = μ_k•F_n

Force due to static friction is given as;

F_static = μ_s•F_n

Where ;

μ_k = coefficient of kinetic friction

μ_s = coefficient of static friction

F_n = Normal Force

Let's solve for the static crate.

From the free body diagram i attached, the resultant force in the vertical y direction will be;

N - mg = 0

Thus, N = mg

WherN is the

From earlier, we know that;

F_static = μ_s•F_n

Thus,

F_static = μ_s•mg

Now, in the horizontal x direction,

F_static = ma

Thus,

μ_s•mg = ma

m will cancel out, and;

a = μ_s•g

a = 0.3 x 9.81 = 2.943 m/s²

Not, to get the final the final speed of the tool box, we'll use;

V_f = V_i + a•Δt

Where;

Δt is shortest time.

V_f = final velocity

V_i = initial velocity

Thus, making Δt the subject, we have;

Δt = (V_f - V_i)/a = (10.2 - 0)/2.943 = 3.47 s

6 0
2 years ago
1. For each of the following scenarios, describe the force providing the centripetal force for the motion: a. a car making a tur
GenaCL600 [577]

Complete Question

For each of the following scenarios, describe the force providing the centripetal force for the motion:

a. a car making a turn

b. a child swinging around a pole

c. a person sitting on a bench facing the center of a carousel

d. a rock swinging on a string

e. the Earth orbiting the Sun.

Answer:

Considering a

    The force providing the centripetal force is the frictional force on the tires \

          i.e  \mu mg  =  \frac{mv^2}{r}

    where \mu is the coefficient of static friction

Considering b

   The force providing the centripetal force is the force experienced by the boys  hand on the pole

Considering c

     The force providing the centripetal force is the normal from the bench due to the boys weight

Considering d

     The force providing the centripetal force is the tension on the string

Considering e

      The force providing the centripetal force is the force of gravity between the earth and the sun

Explanation:

6 0
3 years ago
Calculate the impulse imparted when a 3,000-kg car hits a wall at 60 . m/s and comes to a stop.
Pani-rosa [81]

Impulse = change in momentum


The answer is 0.

7 0
2 years ago
In concave lenses a Distance object appears ​
JulsSmile [24]

Answer:

it appears to be farther away than it actually is, and therefore smaller then the object itself.

4 0
2 years ago
Which electromagnetic waves have the shortest wavelength and the highest frequency?
ra1l [238]
It’s supposed to be gamma, what are your other options
5 0
2 years ago
Other questions:
  • How do you think the temperature difference between the beakers relates to the rate of heat transfer?
    12·1 answer
  • Consider a product with three components in​ series, with reliabilities of​ 0.90, 0.80, and 0.99 for components​ A, B, and​ C, r
    11·1 answer
  • Which statement best describes wavelength
    5·2 answers
  • If an object on a horizontal frictionless surface is attached to a spring, displaced, and then released, it oscillates. Suppose
    12·1 answer
  • Once a satelite has entered a stable orbit round earth why does it not need fuel?
    14·1 answer
  • How are the Digestive system and the Circulatory system similar?
    14·1 answer
  • 4)What is the mass of an object weighing<br> 3,000N?
    5·2 answers
  • How can you return a negatively or positively charged object back to its neutral state?
    7·1 answer
  • Eva Baul throws a ball upward at 23.4 m/s
    10·1 answer
  • A non-rigid balloon is held in a chamber set at 293 K and 1 atm of pressure. The balloon's volume is 0.05 m³. If the pressure in
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!